Pocket Watch Database

Keystone Watch Case Co. Boss Scale Crown 14K/20YR
Watch Case Marking for Keystone Watch Case Co. Boss Scale Crown 14K/20YR: Keystone
Watch Case Co.
[Keystone Block]
[Crown and Scales]
J.Boss
14K
Gold Filled

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/20YR

Database ID:PWDB-31
Case Grade:Boss Scale Crown 14K/20YR
Material:Gold-Filled
Gold Content:14K
Guarantee:20-Year
Introduced:July 1889
Discontinued:January 1898
Note:Prior to July 1889, the "Boss" case was only available in one grade, 14K and guranteed for 25 Years. This grade used the same "Crown and Scale" mark as the 14K/20YR grade instroduced in July 1889. "Solid Gold Bows and Thumb Pieces" [1895SFM]
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 Jones & Horan



Image Provided by Jones & Horan


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.

43 Admirations
Serial No.: #7819049
Manufacturer:Waltham
Grade:Crescent St.
Size:18s
Model:1892
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:1896
Case Model:J. Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:2622730
Added By:Mobilaero Profile Image Mobilaero
54 Admirations
Serial No.: #8401426
Manufacturer:Elgin
Grade:214
Size:18s
Model:8
Jewels:23j
Setting:Lever
Finish:Nickel
Est. Date:1900
Case Model:J.Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:2623316
Added By:Mobilaero Profile Image Mobilaero
6 Admirations
Serial No.: #6597289
Manufacturer:Elgin
Grade:152
Size:16s
Model:6
Jewels:15j
Setting:Pendant
Finish:Nickel
Est. Date:1897
Case Model:J. Boss 14K
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:2639491
Added By:WatchWorksICT Profile Image WatchWorksICT
3 Admirations
Serial No.: #156056
Manufacturer:Elgin
Grade:20
Size:18s
Model:2
Jewels:15j
Setting:Lever
Finish:Gilt
Est. Date:1873
Case Model:BOSS SCALE CROWN
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:2645311
Added By:SteveO1 Profile Image SteveO1
2 Admirations
Serial No.: #640001
Manufacturer:Seth Thomas
Grade:207
Size:18s
Model:7
Jewels:15j
Setting:Lever
Finish:Two-Tone
Est. Date:1900
Case Model:JBoss
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:2804598
Added By:Ausserdog Profile Image Ausserdog
Serial No.: #5508748
Manufacturer:Waltham
Grade:H
Size:6s
Model:1890
Jewels:11j
Setting:Pendant
Finish:Nickel
Est. Date:November 1891 - March 1892
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:2805984
Added By:rholland59 Profile Image rholland59
2 Admirations
Serial No.: #9146967
Manufacturer:Elgin
Grade:206
Size:6s
Model:2
Jewels:7j
Setting:Pendant
Finish:Nickel
Est. Date:1901
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:2826159
Added By:james9806 Profile Image james9806
2 Admirations
Serial No.: #12775176
Manufacturer:Elgin
Grade:337
Size:16s
Model:6
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1907
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:2876282
Added By:jimpro3 Profile Image jimpro3
2 Admirations
Serial No.: #7860106
Manufacturer:Elgin
Grade:185
Size:16s
Model:6
Jewels:15j
Setting:Pendant
Finish:Gilt
Est. Date:1899
Case Model:J Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:2904095
Added By:rholland59 Profile Image rholland59
9 Admirations
Serial No.: #107435
Manufacturer:Hamilton
Grade:943
Size:18s
Model:2
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1900
Case Model:JBOSS
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:2972404
Added By:Gimparoo Profile Image Gimparoo
Serial No.: #1462921
Manufacturer:Illinois
Grade:64
Size:18s
Model:5
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:1899
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:4455474
Added By:AEMSMILLC Profile Image AEMSMILLC
2 Admirations
Serial No.: #6387466
Manufacturer:Elgin
Grade:117
Size:6s
Model:2
Jewels:7j
Setting:Pendant
Finish:Gilt
Est. Date:1896
Case Model:J.Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:5002063
Added By:JenZo82 Profile Image JenZo82
3 Admirations
Serial No.: #10282210
Manufacturer:Elgin
Grade:211
Size:16s
Model:7
Jewels:7j
Setting:Pendant
Finish:Nickel
Est. Date:1904
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:5082116
Added By:silencefriction Profile Image silencefriction
10 Admirations
Serial No.: #497161
Manufacturer:Ball - Hamilton
Grade:999g
Size:18s
Model:1A
Jewels:19j
Setting:Lever
Finish:Nickel
Est. Date:1906
Case Model:J.Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:5139474
Added By:CJEmpire3 Profile Image CJEmpire3
5 Admirations
Serial No.: #534608
Manufacturer:Ball - Hamilton
Grade:999h
Size:18s
Model:1
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:1906
Case Model:J.Boss / Ball Model
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:5237397
Added By:redjms Profile Image redjms
2 Admirations
Serial No.: #497290
Manufacturer:Ball - Hamilton
Grade:999g
Size:18s
Model:1A
Jewels:19j
Setting:Lever
Finish:Nickel
Est. Date:1906
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:5270241
Added By:nightstalker638 Profile Image nightstalker638
2 Admirations
Serial No.: #2379146
Manufacturer:Hampden
Grade:Wm. Mckinley
Size:16s
Model:4
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1907
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:5279645
Added By:mjdevo31 Profile Image mjdevo31
5 Admirations
Serial No.: #1711983
Manufacturer:Illinois
Grade:Bunn Special
Size:18s
Model:6
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1905
Case Model:J. Boss
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:5295488
Added By:jgarbolino Profile Image jgarbolino
11 Admirations
Serial No.: #B224168
Manufacturer:Ball - Waltham
Grade:
Size:16s
Model:1899
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:
Case Model:Ball
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:5299787
Added By:billkov Profile Image billkov
3 Admirations
Serial No.: #15913227
Manufacturer:Elgin
Grade:315
Size:12s
Model:3
Jewels:15j
Setting:Pendant
Finish:Nickel
Est. Date:1911
Case Model:J. BOSS
Case Material:Goldfilled
Gold Karat:14
Guarantee:20
Case Serial:5304328
Added By:Wizardmaster Profile Image Wizardmaster