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Enter the serial number from the pocket watch movement below. Do not use the case number. Tips for looking up your watch

How to Find Info About Your Pocket Watch

The Pocket Watch Database has compiled data covering the major American pocket watch manufacturers and created an easy way to find information using the serial number on the watch movement. Here are a few tips to find information about your pocket watch:

  1. Always input the serial number from the pocket watch movement (the "guts" of the watch).
  2. Never use the serial number from the case or any other part.
  3. If the serial number includes a letter, enter it along with the number when using the lookup feature.
  4. Many pocket watch case backs screw off. Others may require a dull wide blade to pry or pop the cover. Be careful not to scratch or damage the movement.
  5. Always select the correct manufacturer, which is usually stamped on the watch movement.
  6. If the manufacturer is not listed on the site, you may have a "private label" watch or it may not be American-made.
  7. Understand that many companies did not keep accurate or complete records. As a result, information displayed on this site may have inaccuracies. This is to be expected, and we have included an option to report inaccurate information on the result pages so the database can be continually improved.
Pocket Watch Serial Number Lookup - Hamilton, South Bend, Illinois, Rockford, Waltham & Elgin Pocket Watches
  Serial Number:
Need to replace a watch crystal? Use our new crystal size guide to find the proper fit.

Elgin Pocket Watch Patents

The following gallery contains patents that were issued or assigned to Elgin or individuals known to be working for the company at the time. Not all designs were fully implemented into production.

Watch Cock Or Bridge

Patent Number:77078
Description:Watch Cock Or Bridge
Inventor:Charles S. Moseley
Patent Date:Apr 21, 1868
Patent Type:Improvement

Watch Pallet

Patent Number:77827
Description:Watch Pallet
Inventor:Charles E. Mason
Patent Date:May 12, 1868
Patent Type:Improvement

Watch Main Spring Ratchet

Patent Number:89328
Description:Watch Main Spring Ratchet
Inventor:Charles S. Moseley
Patent Date:Apr 27, 1869
Patent Type:Improvement

Watch Dustproof Movement

Patent Number:95128
Description:Watch Dustproof Movement
Inventor:Charles S. Moseley
Patent Date:Sep 21, 1869
Patent Type:Improvement

Watch Pinion

Patent Number:96865
Description:Watch Pinion
Inventor:Benjamin Bacon
Assignee:Natl Watch Co
Patent Date:Nov 16, 1869
Patent Type:Improvement

Watch Safety Pinion

Patent Number:104756
Description:Watch Safety Pinion
Inventor:Charles S. Moseley
Patent Date:Jun 28, 1870
Patent Type:Improvement

Watch Hand Set Attach

Patent Number:152113
Description:Watch Hand Set Attach
Inventor:George Hunter
Assignee:Natl Watch Co
Patent Date:Jun 16, 1874
Patent Type:Improvement

Watch Regulator

Patent Number:157021
Description:Watch Regulator
Inventor:George Hunter
Charles S. Moseley
Assignee:Elgin Natl Watch Co
Patent Date:Nov 17, 1874
Patent Type:Improvement

Watch Main Spring

Patent Number:161236
Description:Watch Main Spring
Inventor:George Hunter
Patent Date:Mar 23, 1875
Patent Type:Improvement

Watch Stem Wind

Patent Number:161262
Description:Watch Stem Wind
Inventor:Charles S. Moseley
Assignee:Natl Watch Co
Patent Date:Mar 23, 1875
Patent Type:Improvement

Watch Cannon Pinion

Patent Number:173011
Description:Watch Cannon Pinion
Inventor:George Hunter
Charles S. Moseley
Assignee:Elgin Natl Watch Co
Patent Date:Feb 1, 1876
Patent Type:Improvement

Watch

Patent Number:185867
Description:Watch
Inventor:Charles S. Moseley
Assignee:Elgin Natl Watch Co
Patent Date:Jan 2, 1877
Patent Type:Improvement

Watch Dust Cap

Patent Number:191967
Description:Watch Dust Cap
Inventor:George Hunter
Patent Date:Jun 12, 1877
Patent Type:Improvement

Watch Dial Attach For Stem Wind

Patent Number:222460
Description:Watch Dial Attach For Stem Wind
Inventor:Charles P. Corliss
Assignee:Elgin Natl Watch Co
Patent Date:Dec 9, 1879
Patent Type:Improvement

Machine Pinion Polisher

Patent Number:312855
Description:Machine Pinion Polisher
Inventor:George Hunter
Frank Leman
Patent Date:Feb 24, 1885
Patent Type:Improvement

Watch Stem Wind & Set

Patent Number:325506
Description:Watch Stem Wind & Set
Inventor:Charles P. Corliss
Assignee:Elgin Natl Watch Co
Patent Date:Sep 1, 1885
Patent Type:Improvement

Watch Stop

Patent Number:339862
Description:Watch Stop
Inventor:Charles P. Corliss
Assignee:Elgin Natl Watch Co
Patent Date:Apr 13, 1886
Patent Type:Improvement

Watch Dial Machine For Space

Patent Number:339922
Description:Watch Dial Machine For Space
Inventor:Frncis B. Perkins
Assignee:Elgin Natl Watch Co
Patent Date:Apr 13, 1886
Patent Type:Improvement

Watch Movement Packing Box

Patent Number:339943
Description:Watch Movement Packing Box
Inventor:Carlos H. Smith
Assignee:Elgin Natl Watch Co
Patent Date:Apr 13, 1886
Patent Type:Improvement

Watch Dial

Patent Number:340044
Description:Watch Dial
Inventor:George Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Apr 13, 1886
Patent Type:Improvement

Watch Dial

Patent Number:340045
Description:Watch Dial
Inventor:George Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Apr 13, 1886
Patent Type:Improvement

Watch Dial

Patent Number:340507
Description:Watch Dial
Inventor:George Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Apr 20, 1886
Patent Type:Improvement

Watch Dial

Patent Number:340508
Description:Watch Dial
Inventor:George Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Apr 20, 1886
Patent Type:Improvement

Watch Stem Wind & Set

Patent Number:345619
Description:Watch Stem Wind & Set
Inventor:Charles P. Corliss
Assignee:Elgin Natl Watch Co
Patent Date:Jul 13, 1886
Patent Type:Improvement

Machine Watch Steady Pin

Patent Number:345634
Description:Machine Watch Steady Pin
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Jul 13, 1886
Patent Type:Improvement

Machine Watch Steady Pin

Patent Number:345635
Description:Machine Watch Steady Pin
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Jul 13, 1886
Patent Type:Improvement

Machine Watch Escape Guard Pin

Patent Number:345636
Description:Machine Watch Escape Guard Pin
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Jul 13, 1886
Patent Type:Improvement

Watch Balance

Patent Number:347271
Description:Watch Balance
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Aug 10, 1886
Patent Type:Improvement

Watch Movement

Patent Number:347272
Description:Watch Movement
Inventor:George Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Aug 10, 1886
Patent Type:Improvement

Tp Compensate Balance For

Patent Number:347297
Description:Tp Compensate Balance For
Inventor:George E. Hunter
Patent Date:Aug 10, 1886
Patent Type:Improvement

Watch Cannon Pinion

Patent Number:417644
Description:Watch Cannon Pinion
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Dec 17, 1889
Patent Type:Improvement

Watch Dial Mfg

Patent Number:425020
Description:Watch Dial Mfg
Inventor:David R. Buchanan
Assignee:Elgin Natl Watch Co
Patent Date:Apr 8, 1890
Patent Type:Improvement

Watch Adjust

Patent Number:437203
Description:Watch Adjust
Inventor:George E. Hunter
Frederick H. Corthell
Assignee:Elgin Natl Watch Co
Patent Date:Sep 30, 1890
Patent Type:Improvement

Watch Adjust

Patent Number:437204
Description:Watch Adjust
Inventor:Frederick H. Corthell
George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Sep 30, 1890
Patent Type:Improvement

Watch Apparatus For Adjust

Patent Number:437205
Description:Watch Apparatus For Adjust
Inventor:Frederick H. Corthell
George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Sep 30, 1890
Patent Type:Improvement

Watch Apparatus For Adjust

Patent Number:437206
Description:Watch Apparatus For Adjust
Inventor:George E. Hunter
Frederick H. Corthell
Assignee:Elgin Natl Watch Co
Patent Date:Sep 30, 1890
Patent Type:Improvement

Watch Movement

Patent Number:455046
Description:Watch Movement
Inventor:George E. Hunter
Fred H. Corthell
Assignee:Elgin Natl Watch Co
Patent Date:Jun 30, 1891
Patent Type:Improvement

Stem Set Second Hand

Patent Number:455285
Description:Stem Set Second Hand
Inventor:Fred H. Corthell
George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Jun 30, 1891
Patent Type:Improvement

Watch Balance Hair Spring System Adjust Temp

Patent Number:484796
Description:Watch Balance Hair Spring System Adjust Temp
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Oct 25, 1892
Patent Type:Improvement

Watch Balance Hair Spring Mech Time Adjust

Patent Number:484797
Description:Watch Balance Hair Spring Mech Time Adjust
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Oct 25, 1892
Patent Type:Improvement

Watch Movement Box

Patent Number:488097
Description:Watch Movement Box
Inventor:Carlos H. Smith
Assignee:Elgin Natl Watch Co
Patent Date:Dec 13, 1892
Patent Type:Improvement

Watch Balance & Hair Spring Mech Test

Patent Number:490202
Description:Watch Balance & Hair Spring Mech Test
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Jan 17, 1893
Patent Type:Improvement

Watch Balance & Hair Spring Test

Patent Number:490203
Description:Watch Balance & Hair Spring Test
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Jan 17, 1893
Patent Type:Improvement

Watch Balance Mfg

Patent Number:490204
Description:Watch Balance Mfg
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Jan 17, 1893
Patent Type:Improvement

Watch Stem Wind & Set

Patent Number:503482
Description:Watch Stem Wind & Set
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Aug 15, 1893
Patent Type:Improvement

Tool Dutch Jewel Set

Patent Number:503483
Description:Tool Dutch Jewel Set
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Aug 15, 1893
Patent Type:Improvement

Watch Stem Wind & Set

Patent Number:503527
Description:Watch Stem Wind & Set
Inventor:Charles P. Corliss
Assignee:Elgin Natl Watch Co
Patent Date:Aug 15, 1893
Patent Type:Improvement

Tool Watch Jewel Loader

Patent Number:520681
Description:Tool Watch Jewel Loader
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:May 29, 1894
Patent Type:Improvement

Machine Watch Jewel Load

Patent Number:521715
Description:Machine Watch Jewel Load
Inventor:Curtis A. Smith
Lemuel N. Jackman
Assignee:Elgin Natl Watch Co
Patent Date:Jun 19, 1894
Patent Type:Improvement

Watch Dial Fasten

Patent Number:523913
Description:Watch Dial Fasten
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Jul 31, 1894
Patent Type:Improvement

Machine Dial Sink

Patent Number:527988
Description:Machine Dial Sink
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Oct 23, 1894
Patent Type:Improvement

Watch Center Wheel & Pinion

Patent Number:535238
Description:Watch Center Wheel & Pinion
Inventor:Fred H. Corthell
Assignee:Elgin Natl Watch Co
Patent Date:Mar 5, 1895
Patent Type:Improvement

J Set Machine

Patent Number:555447
Description:J Set Machine
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Feb 25, 1896
Patent Type:Improvement

Machine Watch Man Spring

Patent Number:557021
Description:Machine Watch Man Spring
Inventor:Fred Purdy
Assignee:Elgin Natl Watch Co
Patent Date:Mar 24, 1896
Patent Type:Improvement

Watch Movement Box

Patent Number:557444
Description:Watch Movement Box
Inventor:Charles H. Smith
Assignee:Elgin Natl Watch Co
Patent Date:Mar 31, 1896
Patent Type:Improvement

Tool Watch Truing

Patent Number:558811
Description:Tool Watch Truing
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Apr 21, 1896
Patent Type:Improvement

Metal Ornament Machine

Patent Number:563595
Description:Metal Ornament Machine
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Jul 7, 1896
Patent Type:Improvement

Watch Test Balance Hair Spring Record Mech Vibra

Patent Number:566177
Description:Watch Test Balance Hair Spring Record Mech Vibra
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Aug 18, 1896
Patent Type:Improvement

Stem Wind & Mech

Patent Number:585025
Description:Stem Wind & Mech
Inventor:Charles P. Corliss
Assignee:Elgin Natl Watch Co
Patent Date:Jun 22, 1897
Patent Type:Improvement

Watch Repeat

Patent Number:587574
Description:Watch Repeat
Inventor:William A. Gabriel
Assignee:Elgin Natl Watch Co
Patent Date:Aug 3, 1897
Patent Type:Improvement

Watch Main Spring Fasten

Patent Number:596395
Description:Watch Main Spring Fasten
Inventor:Fred H. Corthell
Assignee:Elgin Natl Watch Co
Patent Date:Dec 28, 1897
Patent Type:Improvement

Wind Mech For Main Spring Barrel

Patent Number:596407
Description:Wind Mech For Main Spring Barrel
Inventor:George Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Dec 28, 1897
Patent Type:Improvement

Watch Barrel

Patent Number:596408
Description:Watch Barrel
Inventor:George Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Dec 28, 1897
Patent Type:Improvement

Watch Stem Wind & Set

Patent Number:1096304
Description:Watch Stem Wind & Set
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:May 12, 1914
Patent Type:Improvement

Watch Dial -eagle & Stars-

Patent Number:D51627
Description:Watch Dial -eagle & Stars-
Inventor:Francis A. Goodrow
Assignee:Elgin Natl Watch Co
Patent Date:Dec 25, 1917
Patent Type:Design

Watch Wrist Case & Clamp

Patent Number:1326934
Description:Watch Wrist Case & Clamp
Inventor:De Forest Hulburd
Assignee:Elgin Natl Watch Co
Patent Date:Jan 6, 1920
Patent Type:Improvement

Watch Movement Box

Patent Number:1331263
Description:Watch Movement Box
Inventor:George E. Hunter
Assignee:Elgin Natl Watch Co
Patent Date:Feb 17, 1920
Patent Type:Improvement

Watch Dial

Patent Number:D56099
Description:Watch Dial
Inventor:Francis A. Goodrow
Assignee:Elgin Natl Watch Co
Patent Date:Aug 17, 1920
Patent Type:Design

Watch Dial

Patent Number:D56422
Description:Watch Dial
Inventor:Francis A. Goodrow
Assignee:Elgin Natl Watch Co
Patent Date:Oct 26, 1920
Patent Type:Design

Watch Dial

Patent Number:D56423
Description:Watch Dial
Inventor:Francis A. Goodrow
Assignee:Elgin Natl Watch Co
Patent Date:Oct 26, 1920
Patent Type:Design

Watch Dial Green Border

Patent Number:D56424
Description:Watch Dial Green Border
Inventor:Francis A. Goodrow
Assignee:Elgin Natl Watch Co
Patent Date:Oct 26, 1920
Patent Type:Design

Watch Dial

Patent Number:D56425
Description:Watch Dial
Inventor:Francis A. Goodrow
Assignee:Elgin Natl Watch Co
Patent Date:Oct 26, 1920
Patent Type:Design

Watch Dial

Patent Number:D56426
Description:Watch Dial
Inventor:Francis A. Goodrow
Assignee:Elgin Natl Watch Co
Patent Date:Oct 26, 1920
Patent Type:Design

Watch Dial

Patent Number:D60336
Description:Watch Dial
Inventor:Francis A. Goodrow
Assignee:Elgin Natl Watch Co
Patent Date:Feb 7, 1922
Patent Type:Design

Watch Wrist Band

Patent Number:1806439
Description:Watch Wrist Band
Inventor:Robert B. Barton
Assignee:Elgin Natl Watch Co
Patent Date:May 19, 1931
Patent Type:Improvement

Watch Or Clock Movement Power Wound

Patent Number:1865379
Description:Watch Or Clock Movement Power Wound
Inventor:Lewis K. Malvern
Assignee:Elgin Natl Watch Co
Patent Date:Jun 28, 1932
Patent Type:Improvement

Watch Case

Patent Number:1900343
Description:Watch Case
Inventor:Edward Howard
Assignee:Elgin Natl Watch Co
Patent Date:Mar 7, 1933
Patent Type:Improvement

Watch Movement Etc Time Mech

Patent Number:1991477
Description:Watch Movement Etc Time Mech
Inventor:Frank D. Urie
Assignee:Elgin Natl Watch Co
Patent Date:Feb 19, 1935
Patent Type:Improvement

Tp Self Wind

Patent Number:2030980
Description:Tp Self Wind
Inventor:William Atkinson Gabriel
Assignee:Elgin Natl Watch Co
Patent Date:Feb 18, 1936
Patent Type:Improvement

Alloy

Patent Number:2146231
Description:Alloy
Inventor:Howard W. Russell
Assignee:Elgin Natl Watch Co
Patent Date:Feb 7, 1939
Patent Type:Improvement

Apparatus And Method Test Hair Spring And Like

Patent Number:2158725
Description:Apparatus And Method Test Hair Spring And Like
Inventor:Robert R. Lawson
Frank D. Urie
Assignee:Elgin Natl Watch Co
Patent Date:Jun 16, 1939
Patent Type:Improvement

Balance Staff

Patent Number:2174122
Description:Balance Staff
Inventor:Thomas P. Dolby
Russell E. Conyne
Assignee:Elgin Natl Watch Co
Patent Date:Sep 26, 1939
Patent Type:Improvement

Motion Control Device

Patent Number:2354954
Description:Motion Control Device
Inventor:Walter Kohlhagen
Assignee:Elgin Natl Watch Co
Patent Date:Aug 1, 1944
Patent Type:Improvement

Lubricant

Patent Number:2355616
Description:Lubricant
Inventor:George E. Barker
Assignee:Elgin Natl Watch Co
Patent Date:Aug 15, 1944
Patent Type:Improvement

Art Of Rating Cyclic Motion

Patent Number:2358078
Description:Art Of Rating Cyclic Motion
Inventor:Walter Kohlhagen
Assignee:Elgin Natl Watch Co
Patent Date:Sep 12, 1944
Patent Type:Improvement

Lubricant Contain Alkyl Piperidine Salts

Patent Number:2412956
Description:Lubricant Contain Alkyl Piperidine Salts
Inventor:George E. Barker
Assignee:Elgin Natl Watch Co
Patent Date:Dec 24, 1946
Patent Type:Improvement

Art Of Make J Bearing

Patent Number:2426546
Description:Art Of Make J Bearing
Inventor:Thomas L. Boswell
Assignee:Elgin Natl Watch Co
Patent Date:Aug 26, 1947
Patent Type:Improvement

Method Apparatus Produce Sapphire Hollow Art

Patent Number:2417437
Description:Method Apparatus Produce Sapphire Hollow Art
Inventor:M. C. Cannon
Assignee:Elgin Natl Watch Co
Patent Date:May 31, 1949
Patent Type:Improvement

Watch Balance Test Apparatus Magazine Therefor

Patent Number:2474947
Description:Watch Balance Test Apparatus Magazine Therefor
Inventor:Walter Kohlhagen
Assignee:Elgin Natl Watch Co
Patent Date:Jul 5, 1949
Patent Type:Improvement

Chronometer Marine Dbl Track Escape Projec

Patent Number:2501266
Description:Chronometer Marine Dbl Track Escape Projec
Inventor:Wenzel M. Jr Wochos
George G. Ensign
Assignee:Elgin Natl Watch Co
Patent Date:Mar 21, 1950
Patent Type:Improvement

Watch Main Spring

Patent Number:2524660
Description:Watch Main Spring
Inventor:Oscar E. Harder
Dimon A. Roberts
Assignee:Elgin Natl Watch Co
Patent Date:Oct 3, 1950
Patent Type:Improvement

Alloy Having High Elastic

Patent Number:2524661
Description:Alloy Having High Elastic
Inventor:Dimon A. Roberts
Oscar E. Harder
Assignee:Elgin Natl Watch Co
Patent Date:Oct 3, 1950
Patent Type:Improvement

Watch Self Wind Impulse Weight Assembly

Patent Number:2551194
Description:Watch Self Wind Impulse Weight Assembly
Inventor:Edward H. Wilkening
Assignee:Elgin Natl Watch Co
Patent Date:May 1, 1951
Patent Type:Improvement

Triple Ether Lubricant

Patent Number:2566157
Description:Triple Ether Lubricant
Inventor:George E. Barker
Assignee:Elgin Natl Watch Co
Patent Date:Aug 28, 1951
Patent Type:Improvement

Chronometer Circuit Control

Patent Number:2579914
Description:Chronometer Circuit Control
Inventor:George G. Ensign
Robert C. Hoppe
Assignee:Elgin Natl Watch Co
Patent Date:Dec 25, 1951
Patent Type:Improvement

Nonspread Lubricant

Patent Number:2583200
Description:Nonspread Lubricant
Inventor:George E. Barker
Assignee:Elgin Natl Watch Co
Patent Date:Jan 22, 1952
Patent Type:Improvement

Art Of Electric Energy Produce Cell

Patent Number:2683184
Description:Art Of Electric Energy Produce Cell
Inventor:Thomas L. Boswell
Assignee:Elgin Natl Watch Co
Patent Date:Jul 6, 1954
Patent Type:Improvement

Mean Time Screw Balance Assembly Etc

Patent Number:2706380
Description:Mean Time Screw Balance Assembly Etc
Inventor:George G. Ensign
Robert C. Hoppe
Assignee:Elgin Natl Watch Co
Patent Date:Apr 19, 1955
Patent Type:Improvement

Tp Power Take Off Device

Patent Number:2757545
Description:Tp Power Take Off Device
Inventor:George G. Ensign
Glenn T. Soper
Assignee:Elgin Natl Watch Co
Patent Date:Aug 7, 1956
Patent Type:Improvement

Pawl And Ratchet Mech

Patent Number:2757555
Description:Pawl And Ratchet Mech
Inventor:George G. Ensign
Glenn T. Soper
Assignee:Elgin Natl Watch Co
Patent Date:Aug 7, 1956
Patent Type:Improvement

Balance Adjust Moment Inertia

Patent Number:2770942
Description:Balance Adjust Moment Inertia
Inventor:Maxime Favret
Assignee:Elgin Natl Watch Co
Patent Date:Nov 20, 1956
Patent Type:Improvement

Voltaic Cell Cathode & Art Of Making Same

Patent Number:2772321
Description:Voltaic Cell Cathode & Art Of Making Same
Inventor:George G. Ensign
Assignee:Elgin Natl Watch Co
Patent Date:Nov 27, 1956
Patent Type:Improvement

Elecl Energy Prodcng Cels & Methd Mkng Same

Patent Number:2781414
Description:Elecl Energy Prodcng Cels & Methd Mkng Same
Inventor:George G. Ensign
Thomas L. Boswell
Assignee:Elgin Natl Watch Co
Patent Date:Feb 12, 1957
Patent Type:Improvement

Tp Electric With Power Take Off

Patent Number:2789411
Description:Tp Electric With Power Take Off
Inventor:George G. Ensign
Glenn T. Soper
Assignee:Elgin Natl Watch Co
Patent Date:Apr 23, 1957
Patent Type:Improvement

Power Take Off Device With Staggered Ratchet

Patent Number:2800763
Description:Power Take Off Device With Staggered Ratchet
Inventor:George G. Ensign
Glenn T. Soper
Assignee:Elgin Natl Watch Co
Patent Date:Jul 30, 1957
Patent Type:Improvement

Watch Wrist Electric

Patent Number:2865163
Description:Watch Wrist Electric
Inventor:George G. Ensign
Glenn T. Soper
Assignee:Elgin Natl Watch Co
Patent Date:Dec 23, 1958
Patent Type:Improvement

Balance With Adjust Moment Inertia

Patent Number:2880570
Description:Balance With Adjust Moment Inertia
Inventor:Maxime Favret
Earl H. Schafer
Assignee:Elgin Natl Watch Co
Patent Date:Apr 7, 1959
Patent Type:Improvement

Watch Electric

Patent Number:2883827
Description:Watch Electric
Inventor:George G. Ensign
Glenn T. Soper
Assignee:Elgin Natl Watch Co
Patent Date:Apr 28, 1959
Patent Type:Improvement

Watch Case Sealed

Patent Number:3020703
Description:Watch Case Sealed
Inventor:Arthur W. Wadsworth
Assignee:Elgin Natl Watch Co
Patent Date:Feb 13, 1962
Patent Type:Improvement

Osscilate Bal Hair Spring & Expnsion Limit

Patent Number:3041819
Description:Osscilate Bal Hair Spring & Expnsion Limit
Inventor:George G. Ensign
Glenn T. Soper
Assignee:Elgin Natl Watch Co
Patent Date:Jul 3, 1962
Patent Type:Improvement

Watch Self Wind Device

Patent Number:3087300
Description:Watch Self Wind Device
Inventor:Maxime Favret
Assignee:Elgin Natl Watch Co
Patent Date:Apr 30, 1963
Patent Type:Improvement

Electric Powered Time Devices

Patent Number:3075345
Description:Electric Powered Time Devices
Inventor:George G. Ensign
Glenn T. Soper
Assignee:Elgin Natl Watch Co
Patent Date:Jul 29, 1963
Patent Type:Improvement

Electric Actuate Time Intergrate Device

Patent Number:3224183
Description:Electric Actuate Time Intergrate Device
Inventor:Carl N. Challacombe
George G. Ensign
Assignee:Elgin Natl Watch Co
Patent Date:Dec 21, 1965
Patent Type:Improvement

Watch Waterproof

Patent Number:3252280
Description:Watch Waterproof
Inventor:George G. Ensign
Assignee:Elgin Natl Watch Co
Patent Date:May 24, 1966
Patent Type:Improvement