Pocket Watch Database

Keystone Watch Case Co. 14K : Variant 1
Watch Case Marking for Keystone Watch Case Co. 14K: Guaranteed
14K
.585 Fine
The K.W.C.Co.

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.

14K

Database ID:PWDB-118
Case Grade:14K
Material:Gold
Gold Content:14K
Note:18s Approximately 45-55 dwt. (OF 25-30 dwt.)16s Approximately 36-45 dwt. (OF 35 dwt.). 6s Approximately 18-19 dwt. 0s Approximately 13 dwt.
Marking Variants:
(Not Intended to be Comprehensive)
Original Papers:

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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Keystone Watch Case Co. Waltham Colonial 14K : Variant 2
Watch Case Marking for Keystone Watch Case Co. Waltham Colonial 14K: Keystone
14K
[Keystone Block]
Waltham
Colonial

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.

Waltham Colonial 14K

Database ID:PWDB-647
Case Grade:Waltham Colonial 14K
Material:Gold
Gold Content:14K
Find Waltham Colonial 14K Cases For Sale on eBay See What Other Waltham Colonial 14K Cases Have Sold For on eBay
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Note: All images are protected by copyright belonging to the uploader. Use without permission is prohibited.
Information provided by users may contain inaccuracies. Dials, cases, and hands displayed may not be original to the watch.

3 Admirations
Serial No.: #55770
Manufacturer:E. Howard Watch Co. (Keystone)
Grade:Series 12
Size:10s
Model:1921
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1928
Case Material:Gold
Gold Karat:14
Case Serial:244215
Added By:tsalerno71 Profile Image tsalerno71
5 Admirations
Serial No.: #58853
Manufacturer:E. Howard Watch Co. (Keystone)
Grade:Series 12
Size:10s
Model:1921
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1928
Case Material:Gold
Gold Karat:14
Case Serial:244966
Added By:vigidy Profile Image vigidy
Serial No.: #61426
Manufacturer:E. Howard Watch Co. (Keystone)
Grade:Series 12
Size:10s
Model:1921
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1928
Case Material:Gold
Gold Karat:14
Case Serial:248634
Added By:wrphillips Profile Image wrphillips
Serial No.: #2421754
Manufacturer:Elgin
Grade:102
Size:18s
Model:3
Jewels:11j
Setting:Lever
Finish:Half-Nickel
Est. Date:1887
Case Material:Gold
Gold Karat:14
Case Serial:503767
Added By:Shazam Profile Image Shazam
4 Admirations
Serial No.: #155961
Manufacturer:Columbus Watch Co.
Grade:22
Size:18s
Model:2
Jewels:11j
Setting:
Finish:Nickel
Est. Date:1889
Case Material:Gold
Gold Karat:14
Case Serial:1185163
Added By:beitri Profile Image beitri
5 Admirations
Serial No.: #2265793
Manufacturer:Illinois
Grade:304
Size:16s
Model:6
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1910
Case Material:Gold
Gold Karat:14
Case Serial:1843361
Added By:CjMontana Profile Image CjMontana
3 Admirations
Serial No.: #5893335
Manufacturer:Waltham
Grade:No. 1
Size:18s
Model:1883
Jewels:7j
Setting:Lever
Finish:Gilt
Est. Date:February 1893 - June 1893
Case Model:Hunting
Case Material:Gold
Gold Karat:14
Case Serial:2514590
Added By:MacCat Profile Image MacCat
0 Admirations
Serial No.: #7073125
Manufacturer:Elgin
Grade:152
Size:16s
Model:6
Jewels:15j
Setting:Pendant
Finish:Nickel
Est. Date:1898
Case Material:Gold
Gold Karat:14
Case Serial:4502877
Added By:djbederka Profile Image djbederka
2 Admirations
Serial No.: #6326888
Manufacturer:Elgin
Grade:109
Size:0s
Model:1
Jewels:7j
Setting:Pendant
Finish:Gilt
Est. Date:1896
Case Material:Gold
Gold Karat:14
Case Serial:4517138
Added By:Elguapowho Profile Image Elguapowho
6 Admirations
Serial No.: #579992
Manufacturer:South Bend
Grade:329
Size:18s
Model:2
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1909
Case Material:Gold
Gold Karat:14
Case Serial:4530331
Added By:2mnyboxers Profile Image 2mnyboxers
2 Admirations
Serial No.: #6984021
Manufacturer:Waltham
Grade:Riverside
Size:16s
Model:1888
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:August 1898 - July 1899
Case Material:Gold
Gold Karat:14
Case Serial:4545373
Added By:danwilsn Profile Image danwilsn
7 Admirations
Serial No.: #1370334
Manufacturer:Illinois
Grade:173
Size:16s
Model:5
Jewels:15j
Setting:Lever
Finish:Nickel
Est. Date:1897
Case Material:Gold
Gold Karat:14
Case Serial:4554447
Added By:elk1989 Profile Image elk1989
0 Admirations
Serial No.: #375348
Manufacturer:Hamilton
Grade:991
Size:16s
Model:1
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1907
Case Material:Gold
Gold Karat:14
Case Serial:4702617
Added By:Utes1972 Profile Image Utes1972
2 Admirations
Serial No.: #15384464
Manufacturer:Elgin
Grade:320
Size:0s
Model:2
Jewels:7j
Setting:Pendant
Finish:Nickel
Est. Date:1911
Case Material:Gold
Gold Karat:14
Case Serial:4742191
Added By:nlhegarty Profile Image nlhegarty
2 Admirations
Serial No.: #8506122
Manufacturer:Elgin
Grade:205
Size:0s
Model:3
Jewels:19j
Setting:Pendant
Finish:Nickel
Est. Date:1900
Case Material:Gold
Gold Karat:14
Case Serial:4751368
Added By:GerrishBlaney Profile Image GerrishBlaney
0 Admirations
Serial No.: #2008289
Manufacturer:Waltham
Grade:Sterling
Size:18s
Model:1877
Jewels:7j
Setting:Lever
Finish:
Est. Date:February 1883 - April 1883
Case Model:4773682
Case Material:Gold
Gold Karat:14
Case Serial:4773682
Added By:l46watson Profile Image l46watson
2 Admirations
Serial No.: #12583099
Manufacturer:Waltham
Grade:Maximus
Size:16s
Model:1899
Jewels:23j
Setting:Pendant
Finish:
Est. Date:1903
Case Material:Gold
Gold Karat:14
Case Serial:4790621
Added By:przmtz Profile Image przmtz
0 Admirations
Serial No.: #4800552
Manufacturer:Keystone Watch Case Co.
Grade:
Size:
Model:
Jewels:17j
Setting:
Finish:Flat
Est. Date:1882-1927
Case Material:Gold
Gold Karat:14
Case Serial:4800552
Added By:Eyeswideopen Profile Image Eyeswideopen
0 Admirations
Serial No.: #12387253
Manufacturer:Elgin
Grade:312
Size:16s
Model:6
Jewels:15j
Setting:Pendant
Finish:Nickel
Est. Date:1906
Case Material:Gold
Gold Karat:14
Case Serial:4806623
Added By:Nvagra Profile Image Nvagra
3 Admirations
Serial No.: #331673
Manufacturer:Hamilton
Grade:971
Size:16s
Model:1
Jewels:21j
Setting:Pendant
Finish:Nickel
Est. Date:1905
Case Material:Gold
Gold Karat:14
Case Serial:4810083
Added By:spaz317 Profile Image spaz317