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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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6 Admirations
| Serial No.: | #6041055 |
| Manufacturer: | Elgin |
| Grade: | 133 |
| Size: | 6s |
| Model: | 2 |
| Jewels: | 15j |
| Setting: | Pendant |
| Finish: | Nickel |
| Est. Date: | 1896 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 6462647 |
| Added By: |  shaunleatham |
2 Admirations
| Serial No.: | #9174663 |
| Manufacturer: | Elgin |
| Grade: | 213 |
| Size: | 16s |
| Model: | 7 |
| Jewels: | 7j |
| Setting: | Pendant |
| Finish: | Gilt |
| Est. Date: | 1901 |
| Case Model: | 7 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 6528779 |
| Added By: |  WatchCat16 |
3 Admirations
| Serial No.: | #653409 |
| Manufacturer: | Hamilton |
| Grade: | 940 |
| Size: | 18s |
| Model: | 1 |
| Jewels: | 21j |
| Setting: | Lever |
| Finish: | Nickel |
| Est. Date: | 1910 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 6615135 |
| Added By: | rjandladyj |
7 Admirations
| Serial No.: | #12001313 |
| Manufacturer: | Waltham |
| Grade: | Vanguard |
| Size: | 18s |
| Model: | 1892 |
| Jewels: | 23j |
| Setting: | Lever |
| Finish: | Nickel |
| Est. Date: | 1902 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 6615135 |
| Added By: | rjandladyj |
12 Admirations
| Serial No.: | #7901382 |
| Manufacturer: | Waltham |
| Grade: | Vanguard |
| Size: | 18s |
| Model: | 1892 |
| Jewels: | 21j |
| Setting: | Lever |
| Finish: | Nickel |
| Est. Date: | 1896 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 6636627 |
| Added By: | kansasbeals |
4 Admirations
| Serial No.: | #9305503 |
| Manufacturer: | Elgin |
| Grade: | 270 |
| Size: | 16s |
| Model: | 9 |
| Jewels: | 21j |
| Setting: | Lever |
| Finish: | Nickel |
| Est. Date: | 1902 |
| Case Model: | J. Boss |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 6644252 |
| Added By: | cranemaker |
2 Admirations
| Serial No.: | #B600624 |
| Manufacturer: | Ball - Hamilton |
| Grade: | 999m |
| Size: | 16s |
| Model: | 1 |
| Jewels: | 21j |
| Setting: | Lever |
| Finish: | Nickel |
| Est. Date: | 1910 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 6649525 |
| Added By: |  PANHANDLEPETE |
2 Admirations
| Serial No.: | #3741085 |
| Manufacturer: | Elgin |
| Grade: | 116 |
| Size: | 18s |
| Model: | 5 |
| Jewels: | 15j |
| Setting: | Pendant |
| Finish: | Nickel |
| Est. Date: | 1890 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 25 |
| Case Serial: | 6890021 |
| Added By: |  kenlmitchell |
