Pocket Watch Database

Keystone Watch Case Co. Boss Scale Crown 14K/25YR
Watch Case Marking for Keystone Watch Case Co. Boss Scale Crown 14K/25YR: Keystone
Watch Case Co.
[Keystone Block]
[Crown and Scales]
Guaranteed
J.Boss 14K
25 Years

Note: Case manufacturers modified markings over time. As a result, the image above is simply a representation of one particular marking used by the company. Your case marking may differ based on the production era and other parameters.

Boss Scale Crown 14K/25YR

Database ID:PWDB-5
Case Grade:Boss Scale Crown 14K/25YR
Material:Gold-Filled
Gold Content:14K
Guarantee:25-Year
Introduced:January 1898
Note:Keystone added an additional five years to the guarantees starting January 1898, leading to the 14K/25YR grade. "Solid Gold Bow, Crown, Joints, and Thumb Piece" [1913FD]
Trademark:82993
Trademark Issued:Aug 8, 1911
In Use Since:c.1875
Patents:#23820
Marking Variants:
(Not Intended to be Comprehensive)
Original Papers:

Image Provided by The Keystone



Image Provided by The Keystone



Image Provided by The Keystone


Catalog Sources: 1877DFC 1878CYC 1880GHR 1880JAB 1880NHW 1882SFM 1883GHR 1883UNK 1884LSS 1885OY 1886HMS 1886RA 1887BHIA 1887LAM 1888BA 1888OY 1889BAM 1889EVR 1890AP 1890BA 1890CHK 1890JC05 1890OY 1890SFM 1891RR 1891SAC 1892ACR 1892BAC 1892CPS 1892WES 1893BFNA 1893BHIA 1893MCE 1893SAC 1894BA 1894BATM 1894NRC 1895OY 1895SFM 1896MF 1896OY 1897BB 1898MLMF 1899ACB 1899BHIA 1899SAC 1900BA 1900BHIA 1900LMC 1900NHW 1901BAC 1901OY 1902ACB 1902BATM 1902BB 1902MF 1903ACB 1903BAC 1903FDW 1903N76 1903ON 1904ACB 1904BA 1904LB 1904PWC 1905ACB 1905BAC 1905DH 1905FNCS 1905ON 1906ON 1906SRC 1907ACB 1907JVF 1907NAC 1907NBC 1907OY 1907SFM 1908ACB 1909BAC 1910ACB 1911NG 1911OY 1911WJJ 1912COC 1912HA 1912NG 1912SFM 1912WJJ 1913FDW 1914ELD 1915ACB 1915ON 1915PWE 1916LCM 1917BA 1923CBN 1923ON 1925ASJ 1925CPS 1928ON 1932ON 1942WAG
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Information provided by users may contain inaccuracies. Dials, cases, and hands displayed may not be original to the watch.

5 Admirations
Serial No.: #B404537
Manufacturer:Illinois
Grade:Commercial Standard
Size:12s
Model:1
Jewels:19j
Setting:Pendant
Finish:Nickel
Est. Date:1926
Case Model:Ball Model/ J Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:7772484
Added By:Rickglick1 Profile Image Rickglick1
2 Admirations
Serial No.: #13486219
Manufacturer:Waltham
Grade:No. 220
Size:12s
Model:1894
Jewels:15j
Setting:Pendant
Finish:Nickel
Est. Date:1903
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:7787110
Added By:khaas78 Profile Image khaas78
4 Admirations
Serial No.: #29720179
Manufacturer:Elgin
Grade:472
Size:16s
Model:15
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1927
Case Model:J Boss/B.W. Raymond
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:7836339
Added By:Rickglick1 Profile Image Rickglick1
5 Admirations
Serial No.: #34948803
Manufacturer:Elgin
Grade:494
Size:16s
Model:15
Jewels:23j
Setting:Lever
Finish:Nickel
Est. Date:1934
Case Model:J Boss Ball Model
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:7837092
Added By:Rickglick1 Profile Image Rickglick1
3 Admirations
Serial No.: #17822547
Manufacturer:Elgin
Grade:372
Size:16s
Model:15
Jewels:19j
Setting:Lever
Finish:Nickel
Est. Date:1914
Case Model:B W Raymond Style #40
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:7862504
Added By:Rickglick1 Profile Image Rickglick1
6 Admirations
Serial No.: #859543
Manufacturer:E. Howard Watch Co. (Keystone)
Grade:Series 3
Size:16s
Model:1905
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1906
Case Model:Crown & Scales
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:7874880
Added By:TimeAntiquarian Profile Image TimeAntiquarian
5 Admirations
Serial No.: #2920
Manufacturer:Dudley Watch Co.
Grade:
Size:12s
Model:2
Jewels:19j
Setting:Pendant
Finish:Gilt
Est. Date:1920-1925
Case Model:J. Boss Scale Crown
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:7909823
Added By:awholtzapple Profile Image awholtzapple
2 Admirations
Serial No.: #13336345
Manufacturer:Waltham
Grade:No. 625
Size:16s
Model:1899
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1903
Case Model:J.Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:7937923
Added By:MichaelB Profile Image MichaelB
3 Admirations
Serial No.: #1930060
Manufacturer:Illinois
Grade:175
Size:16s
Model:4
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:1906
Case Model:J. Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:7977953
Added By:AntiqueMan7 Profile Image AntiqueMan7
2 Admirations
Serial No.: #1080247
Manufacturer:E. Howard Watch Co. (Keystone)
Grade:Series 7
Size:12s
Model:1908
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1910
Case Model:BOSS SCALE CROWN
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:8060206
Added By:SteveO1 Profile Image SteveO1
3 Admirations
Serial No.: #B209555
Manufacturer:Ball
Grade:Official Standard
Size:16s
Model:1899
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:1905
Case Model:JBOSS
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:8126496
Added By:TimeFlysByDiva Profile Image TimeFlysByDiva
4 Admirations
Serial No.: #807399
Manufacturer:Hamilton
Grade:993
Size:16s
Model:1
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1911
Case Model:J.Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:8144952
Added By:MichaelB Profile Image MichaelB
3 Admirations
Serial No.: #824016
Manufacturer:Rockford
Grade:640
Size:16s
Model:3
Jewels:21j
Setting:Pendant
Finish:Nickel
Est. Date:1910
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:8237929
Added By:Rickglick1 Profile Image Rickglick1
2 Admirations
Serial No.: #2368679
Manufacturer:Illinois
Grade:506
Size:14s
Model:4
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1912
Case Model:J Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:8254333
Added By:wfoufo Profile Image wfoufo
4 Admirations
Serial No.: #18911628
Manufacturer:Waltham
Grade:No. 220
Size:12s
Model:1894
Jewels:15j
Setting:Pendant
Finish:Nickel
Est. Date:1913
Case Model:J Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:8418698
Added By:whiterook Profile Image whiterook
5 Admirations
Serial No.: #2690583
Manufacturer:Illinois
Grade:405
Size:12s
Model:3
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1915
Case Model:J. Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:8419605
Added By:esrun59 Profile Image esrun59
5 Admirations
Serial No.: #2688425
Manufacturer:Illinois
Grade:Bunn Special
Size:16s
Model:9
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1914
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:8489656
Added By:tsullivan Profile Image tsullivan
3 Admirations
Serial No.: #2582634
Manufacturer:Hamilton
Grade:992e
Size:16s
Model:2
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1930
Case Model:Mainliner
Case Material:Goldfilled
Gold Karat:14
Guarantee:25
Case Serial:8698799
Added By:rnfwatch Profile Image rnfwatch