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.

2 Admirations
Serial No.: #16511860
Manufacturer:Waltham
Grade:No. 165
Size:0s
Model:1907
Jewels:15j
Setting:Pendant
Finish:Nickel
Est. Date:1908
Case Material:Gold
Gold Karat:14
Case Serial:5174955
Added By:niccip14 Profile Image niccip14
Serial No.: #16472684
Manufacturer:Elgin
Grade:344
Size:12s
Model:2
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1912
Case Material:Gold
Gold Karat:14
Case Serial:5210472
Added By:Williamlo64 Profile Image Williamlo64
4 Admirations
Serial No.: #2387202
Manufacturer:Illinois
Grade:601
Size:16s
Model:6
Jewels:11j
Setting:Pendant
Finish:Nickel
Est. Date:1911
Case Material:Gold
Gold Karat:14
Case Serial:5234075
Added By:clubska67 Profile Image clubska67
3 Admirations
Serial No.: #18133835
Manufacturer:Waltham
Grade:Riverside
Size:12s
Model:1894
Jewels:19j
Setting:Pendant
Finish:Nickel
Est. Date:1911
Case Material:Gold
Gold Karat:14
Case Serial:5262827
Added By:Jerry2657 Profile Image Jerry2657
2 Admirations
Serial No.: #20008522
Manufacturer:Waltham
Grade:Sapphire
Size:6/0s
Model:1898
Jewels:15j
Setting:Pendant
Finish:
Est. Date:1915
Case Material:Gold
Gold Karat:14
Case Serial:5303607
Added By:elk1989 Profile Image elk1989
2 Admirations
Serial No.: #19019225
Manufacturer:Waltham
Grade:P.S. Bartlett
Size:16s
Model:1908
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1913
Case Model:5370270
Case Material:Gold
Gold Karat:14
Case Serial:5370270
Added By:BigTill650 Profile Image BigTill650
Serial No.: #19679554
Manufacturer:Waltham
Grade:No. 361
Size:3/0s
Model:1907
Jewels:7j
Setting:Pendant
Finish:Nickel
Est. Date:1914
Case Material:Gold
Gold Karat:14
Case Serial:5384033
Added By:Steve3bs Profile Image Steve3bs
2 Admirations
Serial No.: #1734746
Manufacturer:Hamilton
Grade:992
Size:16s
Model:2
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1923
Case Model:5410111
Case Material:Gold
Gold Karat:14
Case Serial:5410111
Added By:Kyler2004 Profile Image Kyler2004
0 Admirations
Serial No.: #20471778
Manufacturer:Elgin
Grade:442
Size:3/0s
Model:0
Jewels:7j
Setting:Pendant
Finish:
Est. Date:1918
Case Material:Gold
Gold Karat:14
Case Serial:5416296
Added By:Patriot Profile Image Patriot
0 Admirations
Serial No.: #1738545
Manufacturer:Hamilton
Grade:992
Size:16s
Model:2
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1923
Case Material:Gold
Gold Karat:14
Case Serial:5521357
Added By:SLCroix Profile Image SLCroix
Serial No.: #18376404
Manufacturer:Waltham
Grade:No. 225
Size:12s
Model:1894
Jewels:17j
Setting:Pendant
Finish:
Est. Date:1912
Case Material:Gold
Gold Karat:14
Case Serial:5539693
Added By:Narbrich Profile Image Narbrich
3 Admirations
Serial No.: #12148032
Manufacturer:Elgin
Grade:190
Size:12s
Model:2
Jewels:23j
Setting:Pendant
Finish:Nickel
Est. Date:1906
Case Material:Gold
Gold Karat:14
Case Serial:5545959
Added By:chasofvt Profile Image chasofvt
0 Admirations
Serial No.: #21686557
Manufacturer:Waltham
Grade:No. 220
Size:12s
Model:1894
Jewels:15j
Setting:Pendant
Finish:
Est. Date:1917
Case Material:Gold
Gold Karat:14
Case Serial:5549173
Added By:gusbrk Profile Image gusbrk
2 Admirations
Serial No.: #26212198
Manufacturer:Elgin
Grade:315
Size:12s
Model:3
Jewels:15j
Setting:Pendant
Finish:Nickel
Est. Date:1924
Case Material:Gold
Gold Karat:14
Case Serial:5685735
Added By:bilsky55 Profile Image bilsky55
2 Admirations
Serial No.: #27559134
Manufacturer:Elgin
Grade:344
Size:12s
Model:2
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1925
Case Model:6107432
Case Material:Gold
Gold Karat:14
Case Serial:6107432
Added By:JesseD Profile Image JesseD
Serial No.: #30408729
Manufacturer:Elgin
Grade:315
Size:12s
Model:3
Jewels:15j
Setting:Pendant
Finish:Nickel
Est. Date:1928
Case Material:Gold
Gold Karat:14
Case Serial:6116848
Added By:KBkitties Profile Image KBkitties
3 Admirations
Serial No.: #28815696
Manufacturer:Elgin
Grade:462
Size:3/0s
Model:2
Jewels:7j
Setting:Pendant
Finish:Nickel
Est. Date:1926
Case Model:3XO
Case Material:Gold
Gold Karat:14
Case Serial:6122138
Added By:Alancluett Profile Image Alancluett
3 Admirations
Serial No.: #24569169
Manufacturer:Waltham
Grade:Vanguard
Size:16s
Model:1908
Jewels:23j
Setting:Lever
Finish:Nickel
Est. Date:1924
Case Material:Gold
Gold Karat:14
Case Serial:6125053
Added By:EarlGreybeard Profile Image EarlGreybeard
2 Admirations
Serial No.: #1734871
Manufacturer:Hamilton
Grade:992
Size:16s
Model:2
Jewels:21j
Setting:Lever
Finish:Nickel
Est. Date:1923
Case Material:Gold
Gold Karat:14
Case Serial:6153197
Added By:amberballman Profile Image amberballman
2 Admirations
Serial No.: #33872314
Manufacturer:Elgin
Grade:479
Size:12s
Model:4
Jewels:17j
Setting:Pendant
Finish:Nickel
Est. Date:1933
Case Material:Gold
Gold Karat:14
Case Serial:6161739
Added By:Kevinmac56 Profile Image Kevinmac56