Pocket Watch Database
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/tremont-watch-co/4990
https://pocketwatchdatabase.com/search/result/tremont-watch-co/4990
Access Date: September 21, 2024
We noticed that you entered a relatively short serial number.
"4990" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
"4990" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
Due to the lack of existing factory records, our Tremont Watch Co. database has been reconstructed using observations of known watches.
As a result, the information may contain inaccuracies. Please let us know if you have details that can improve the database.
From the American Horology Archive:
Tremont Watch Co.
Grade: Tremont Watch Co.
| Manufacturer: | Tremont Watch Co. |  |
| Manufacturer Location: | Boston, Massachusetts | |
| Movement Serial Number: | 4990 | |
| Grade: | Tremont Watch Co. | |
| Variation: | 15J.CompBalance | |
| Model: | 1 | |
| Estimated Production Year: | 1866 | |
| Run Quantity: | 750 | |
| Grade/Model Run: | 12 of 21 | |
| Grade/Model Total Production: | 8,080 | |
| Variant Est. Production: | 7,325 (18S-M1-15J-EGK-U-15J.COMPBALANCE) | |
| Size: | 18s | |
| Jewels: | 15j | |
| Movement Configuration: | Adaptable | |
| Movement Finish: | Gilt | |
| Movement Setting: | Key | |
| Plate: | Full Plate | |
| Regulator: | Plain | |
| Hairspring: | Flat | |
| Movement Markings: | Tremont Watch Co. Boston |
|
| Case: | Various | |
| Run ID: | 15.G13.18S15.181M14.E15.K15.15J9 | |
| Database Version: | v52.400 | |
| Advanced Metrics | ||
| PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration | 24.32 | |
| PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration | 730.00 | |
| Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration | 44.177% | |
| Registry Population: Scoped for This Run Only | 5 (0.67%) | |
Production Metrics Tree: Grade Tremont Watch Co.
Target Profile: 18S-M1-15J-EGK-U-15J.COMPBALANCE
| Tremont Watch Co. Grade Tremont Watch Co. (All Variations): 8,580 ETP | |||||
| 18S: 8,580 100.00% 18s, Grade Tremont Watch Co. |
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| 18S-M1: 8,080 94.17% 18s, Grade Tremont Watch Co., Model 1 |
Other: 500
Other Models or Unclassified |
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| 18S-M1-15J: 7,825 91.20% 18s, Grade Tremont Watch Co., Model 1, 15 Jewels |
Other: 255
Other Jewels or Unclassified |
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| 18S-M1-15J-EGK: 7,825 91.20% 18s, Grade Tremont Watch Co., Model 1, 15 Jewels, Adaptable/Key/Gilt |
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| 18S-M1-15J-EGK-U: 7,825 91.20% | |||||
| 18S-M1-15J-EGK-U-15J.COMPBALANCE: 7,325 85.37% | |||||
Population Registry for This Run
| Image | Serial Number | Run Position | Primary Identification Method | Discovery Date | |
|---|---|---|---|---|---|
|
There are 5 watches in the population registry for this run with 4 images.
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Help Us Help Others By Improving the Database:
Does this information describe your movement accurately?
Verification Reports for this Run
The following reports have been graciously submitted by dedicated members in reference to this production run. These reports are useful to verify data and track inaccuracies that require further research. Please note that reports may contain inaccurate information or assumptions that must be dilligently considered with other available sources.
Anonymous · February 25, 2021
Serial Number 4895 was reported as accurate.
Changes since this report was submitted:
Jewels changed from 11j or 15j to 15j
