Pocket Watch Database
Back to Case Grades
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: [Crown and Scales]](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Crown-Scales.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: 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: 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/20YR: [Crown and Scales]](https://pocketwatchdatabase.com/assets/images/cases/Keystone-Boss-Crown-Scales-2.jpg)
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.
6 Admirations
| Serial No.: | #509822 |
| Manufacturer: | Seth Thomas |
| Grade: | 11 |
| Size: | 18s |
| Model: | 4 |
| Jewels: | 7j |
| Setting: | Key |
| Finish: | Gilt |
| Est. Date: | 1898 |
| Case Model: | Keystone Boss Scale Crown |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 20 |
| Case Serial: | O330109 |
| Added By: |  SethThomasFan |
2 Admirations
| Serial No.: | #6434239 |
| Manufacturer: | Elgin |
| Grade: | 150 |
| Size: | 18s |
| Model: | 5 |
| Jewels: | 21j |
| Setting: | Pendant |
| Finish: | Nickel |
| Est. Date: | 1896 |
| Case Model: | J Boss |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 20 |
| Case Serial: | 9,276,113 |
| Added By: |  firebirdjeff02 |
9 Admirations
| Serial No.: | #12357 |
| Manufacturer: | Seth Thomas |
| Grade: | 70 |
| Size: | 18s |
| Model: | 3 |
| Jewels: | 15j |
| Setting: | Lever |
| Finish: | Gilt |
| Est. Date: | 1885 |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 20 |
| Case Serial: | 277260 |
| Added By: |  TimeAntiquarian |
4 Admirations
| Serial No.: | #9332 |
| Manufacturer: | Seth Thomas |
| Grade: | 101 |
| Size: | 18s |
| Model: | 1 |
| Jewels: | 15j |
| Setting: | Lever |
| Finish: | Gilt |
| Est. Date: | 1886 |
| Case Model: | Boss Scale Crown |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 20 |
| Case Serial: | 1458616 |
| Added By: | SethThomasFan |
2 Admirations
| Serial No.: | #21971815 |
| Manufacturer: | Waltham |
| Grade: | No. 820 |
| Size: | 18s |
| Model: | 1883 |
| Jewels: | 15j |
| Setting: | Pendant |
| Finish: | Nickel |
| Est. Date: | 1918 |
| Case Model: | J Boss 14k, crown and scales |
| Case Material: | Goldfilled |
| Gold Karat: | 14 |
| Guarantee: | 20 |
| Case Serial: | 2368166 |
| Added By: |  Elguapowho |
