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Keystone Watch Case Co.
Keystone Watch Case Co.
Boss Scale Crown 14K/20YR
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]](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Crown-Scales-3.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/20YR
Find Boss Scale Crown 14K/20YR Cases For Sale on eBay See What Other Boss Scale Crown 14K/20YR Cases Have Sold For on eBay![Watch Case Marking Variant for Keystone Watch Case Co. Boss Scale Crown 14K/20YR: [Crown and Scales]](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Crown-Scales.jpg)
![Watch Case Marking Variant for Keystone Watch Case Co. Boss Scale Crown 14K/20YR: Keystone
Watch Case Co.
[Keystone Block]
[Crown and Scales]](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Crown-Scales-2.jpg)
![Watch Case Marking Variant for Keystone Watch Case Co. Boss Scale Crown 14K/20YR: 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/20YR: [Crown and Scales]](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Boss-Crown-Scales-2.jpg)
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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 |
1 Admiration
| 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 |
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 |
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 |
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 |
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 |
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 |