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Keystone Watch Case Co.
Keystone Watch Case Co.
Boss Scale Crown 14K/25YR
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]
Guaranteed
J.Boss
25 Years](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Boss-25Years-2.jpg)
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
Find Boss Scale Crown 14K/25YR Cases For Sale on eBay See What Other Boss Scale Crown 14K/25YR Cases Have Sold For on eBay![Watch Case Marking Variant for Keystone Watch Case Co. Boss Scale Crown 14K/25YR: Keystone
Watch Case Co.
[Keystone Block]
[Crown and Scales]
J.Boss
25 Years](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Boss-25Years.jpg)
![Watch Case Marking Variant for Keystone Watch Case Co. Boss Scale Crown 14K/25YR: Keystone
Watch Case Co.
[Keystone Block]
[Crown and Scales]
J.Boss
14K
Gold Filled](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Boss-14K.jpg)
![Watch Case Marking Variant for Keystone Watch Case Co. Boss Scale Crown 14K/25YR: Keystone
Watch Case Co.
[Keystone Block]
[Crown and Scales]](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Crown-Scales-3.jpg)
![Watch Case Marking Variant for Keystone Watch Case Co. Boss Scale Crown 14K/25YR: Keystone
Watch Case Co.
[Keystone Block]
[Crown and Scales]
J.Boss
25 Years](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Boss-14K-25Years.jpg)
![Watch Case Marking Variant 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](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Boss-14K25Years-3.jpg)
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5 Admirations
| Serial No.: | #7056561 |
| Manufacturer: | Elgin |
| Grade: | 159 |
| Size: | 16s |
| Model: | 7 |
| Jewels: | 17j |
| Setting: | Pendant |
| Finish: | Nickel |
| Est. Date: | 1898 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Added By: |  astralmind |
2 Admirations
| Serial No.: | #331555 |
| Manufacturer: | Hamilton |
| Grade: | 971 |
| Size: | 16s |
| Model: | 1 |
| Jewels: | 21j |
| Setting: | Pendant |
| Finish: | Nickel |
| Est. Date: | 1905 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Added By: | firebirdjeff02 |
2 Admirations
| Serial No.: | #804982 |
| Manufacturer: | Hamilton |
| Grade: | 974 |
| Size: | 16s |
| Model: | 1 |
| Jewels: | 17j |
| Setting: | Lever |
| Finish: | Nickel |
| Est. Date: | 1911 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Added By: | firebirdjeff02 |
11 Admirations
| Serial No.: | #1532770 |
| Manufacturer: | Hamilton |
| Grade: | 992 |
| Size: | 16s |
| Model: | 2 |
| Jewels: | 21j |
| Setting: | Lever |
| Finish: | Nickel |
| Est. Date: | 1920 |
| Case Model: | Case Model #5 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 44149 |
| Added By: | kansasbeals |
6 Admirations
| Serial No.: | #126989 |
| Manufacturer: | Rockford |
| Grade: | Unknown |
| Size: | 18s |
| Model: | 5 |
| Jewels: | 9j |
| Setting: | Lever |
| Finish: | Gilt |
| Est. Date: | 1881 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 129019 |
| Added By: |  pocketwatch101 |
6 Admirations
| Serial No.: | #2034763 |
| Manufacturer: | Waltham |
| Grade: | P.S. Bartlett |
| Size: | 18s |
| Model: | 1877 |
| Jewels: | 15j |
| Setting: | Lever |
| Finish: | Nickel |
| Est. Date: | July 1883 - October 1883 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 167747 |
| Added By: |  Rickglick1 |
2 Admirations
| Serial No.: | #726214 |
| Manufacturer: | Illinois |
| Grade: | 131 |
| Size: | 4s |
| Model: | 1 |
| Jewels: | 11j |
| Setting: | Lever |
| Finish: | Gilt |
| Est. Date: | 1885 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 203182 |
| Added By: | JDPorter81 |
4 Admirations
| Serial No.: | #1864372 |
| Manufacturer: | Elgin |
| Grade: | 100 |
| Size: | 18s |
| Model: | 6 |
| Jewels: | 15j |
| Setting: | Pendant |
| Finish: | Gilt |
| Est. Date: | 1886 |
| Case Model: | J Boss |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 215857 |
| Added By: | Rickglick1 |
2 Admirations
| Serial No.: | #3403689 |
| Manufacturer: | Elgin |
| Grade: | 95 |
| Size: | 6s |
| Model: | 1 |
| Jewels: | 7j |
| Setting: | Lever |
| Finish: | Gilt |
| Est. Date: | 1889 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 322697 |
| Added By: |  technomage |
