Pocket Watch Database

Keystone Watch Case Co. Silveroid
Watch Case Marking for Keystone Watch Case Co. Silveroid: Keystone
Watch Case Co.
[Keystone Block]
Guaranteed
Silveroid
Genuine
U.S.A.

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.

Silveroid

Database ID:PWDB-19
Case Grade:Silveroid
Material:Nickel Alloy
Introduced:April 1886
Note:Introduced in April 1886 [The Trader, Ad, April 1886].
Marking Variants:
(Not Intended to be Comprehensive)
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.: #153396
Manufacturer:Hampden
Grade:No. 71
Size:18s
Model:1
Jewels:15j
Setting:Key
Finish:Gilt
Est. Date:1880
Case Material:Coinsilver
Case Serial:38546
Added By:Rickhufnagel7 Profile Image Rickhufnagel7
6 Admirations
Serial No.: #258398
Manufacturer:Hamilton
Grade:924
Size:18s
Model:1
Jewels:17j
Setting:Lever
Finish:Nickel
Est. Date:1903
Case Model:Plain 4oz coin
Case Material:Coinsilver
Case Serial:39894
Added By:WIZARDofWARLOCK Profile Image WIZARDofWARLOCK
4 Admirations
Serial No.: #1948077
Manufacturer:Waltham
Grade:P.S. Bartlett
Size:18s
Model:1877
Jewels:11j
Setting:Key
Finish:Gilt
Est. Date:November 1882 - May 1883
Case Material:Coinsilver
Case Serial:42062
Added By:Bostonjoe Profile Image Bostonjoe
5 Admirations
Serial No.: #1904105
Manufacturer:Waltham
Grade:A.T. & Co.
Size:18s
Model:1877
Jewels:15j
Setting:Lever
Finish:Gilt
Est. Date:March 1883 - June 1883
Case Material:Coinsilver
Case Serial:46124
Added By:okiejohn Profile Image okiejohn
7 Admirations
Serial No.: #12572
Manufacturer:Tremont Watch Co.
Grade:Anglo-american Watch Co.
Size:18s
Model:1
Jewels:11j
Setting:Key
Finish:Gilt
Est. Date:1873
Case Material:Coinsilver
Case Serial:47600
Added By:geoulri1 Profile Image geoulri1
3 Admirations
Serial No.: #2693916
Manufacturer:Elgin
Grade:103
Size:18s
Model:3
Jewels:15j
Setting:Lever
Finish:Nickel
Est. Date:1888
Case Material:Coinsilver
Case Serial:48220
Added By:OhBugman Profile Image OhBugman
4 Admirations
Serial No.: #1242336
Manufacturer:Elgin
Grade:13
Size:18s
Model:1
Jewels:11j
Setting:Key
Finish:Gilt
Est. Date:1883
Case Material:Coinsilver
Case Serial:48972
Added By:GurkhaKreed Profile Image GurkhaKreed
3 Admirations
Serial No.: #523535
Manufacturer:Hamilton
Grade:946
Size:18s
Model:1
Jewels:23j
Setting:Lever
Finish:Nickel
Est. Date:1910
Case Material:Coinsilver
Case Serial:49807
Added By:firebirdjeff02 Profile Image firebirdjeff02
5 Admirations
Serial No.: #53772
Manufacturer:Illinois
Grade:Miller
Size:18s
Model:1
Jewels:15j
Setting:Key
Finish:Gilt
Est. Date:1880
Case Material:Coinsilver
Case Serial:53772
Added By:winterwolf Profile Image winterwolf
5 Admirations
Serial No.: #53611
Manufacturer:Elgin
Grade:55
Size:18s
Model:1
Jewels:7j
Setting:Key
Finish:Gilt
Est. Date:1871
Case Material:Coinsilver
Case Serial:64374
Added By:cougwatch Profile Image cougwatch
5 Admirations
Serial No.: #588
Manufacturer:Rockford
Grade:Unknown
Size:18s
Model:1
Jewels:15j
Setting:Key
Finish:Gilt
Est. Date:1876
Case Material:Coinsilver
Case Serial:73886
Added By:tturner770 Profile Image tturner770
4 Admirations
Serial No.: #130041
Manufacturer:Rockford
Grade:Unknown
Size:18s
Model:5
Jewels:7j
Setting:Key
Finish:Gilt
Est. Date:1881
Case Material:Coinsilver
Case Serial:74003
Added By:Meatlips01 Profile Image Meatlips01
12 Admirations
Serial No.: #126199
Manufacturer:Rockford
Grade:Unknown
Size:18s
Model:5
Jewels:7j
Setting:Key
Finish:Gilt
Est. Date:1881
Case Model:Rockford Watch Co
Case Material:Coinsilver
Case Serial:74509
Added By:tsullivan Profile Image tsullivan
4 Admirations
Serial No.: #2329079
Manufacturer:Waltham
Grade:A.T. & Co.
Size:18s
Model:1877
Jewels:15j
Setting:Lever
Finish:Nickel
Est. Date:June 1884 - November 1884
Case Material:Coinsilver
Case Serial:75707
Added By:Dave895 Profile Image Dave895
2 Admirations
Serial No.: #1309423
Manufacturer:Elgin
Grade:6
Size:18s
Model:4
Jewels:7j
Setting:Lever
Finish:Gilt
Est. Date:1884
Case Material:Coinsilver
Case Serial:78814
Added By:Steampunkman Profile Image Steampunkman
4 Admirations
Serial No.: #250108
Manufacturer:Hampden
Grade:Springfield
Size:18s
Model:2
Jewels:11j
Setting:Key
Finish:Gilt
Est. Date:1883
Case Material:Coinsilver
Case Serial:83743
Added By:Cincinnatus Profile Image Cincinnatus
5 Admirations
Serial No.: #54430
Manufacturer:Lancaster Watch Co.
Grade:West End
Size:18s
Model:2
Jewels:10j
Setting:Lever
Finish:Gilt
Est. Date:1881
Case Material:Coinsilver
Case Serial:87112
Added By:pwdmbj Profile Image pwdmbj
2 Admirations
Serial No.: #2654751
Manufacturer:Elgin
Grade:92
Size:16s
Model:3
Jewels:11j
Setting:Lever
Finish:Gilt
Est. Date:1888
Case Material:Coinsilver
Case Serial:90556
Added By:Trustlove83 Profile Image Trustlove83
2 Admirations
Serial No.: #663459
Manufacturer:Waltham
Grade:P.S. Bartlett
Size:18s
Model:1857
Jewels:11j
Setting:Key
Finish:Gilt
Est. Date:January 1873 - March 1, 1873
Case Material:Coinsilver
Case Serial:91963
Added By:afilter Profile Image afilter
2 Admirations
Serial No.: #891008
Manufacturer:Waltham
Grade:P.S. Bartlett
Size:18s
Model:1857
Jewels:11j
Setting:Key
Finish:Gilt
Est. Date:February 1876 - May 1876
Case Material:Coinsilver
Case Serial:99267
Added By:strikeph Profile Image strikeph