Waltham Pocket Watch: Serial Number 3887120 (Grade No. 35)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/waltham/3887120/movement

Access Date: December 22, 2024

From the American Horology Archive:

American Waltham Watch Co.

Grade: No. 35

Non-Magnetic

Private Label(s) in Run:

Canadian Pacific Railway

H. C. Abbott & Bro. - Birmingham Ala

What is a Private Label?

Manufacturer:	Waltham
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	3887120
Grade:	No. 35
Variation:	A.T. & Co. Quality
Model:	1883
Estimated Production Date:	August 1889 - January 1890
Run Quantity:	400
Grade/Model Run:	38 of 65
Grade/Model Total Production:	31,700
Size:	18s
Jewels:	17j
Jewel Material:	Ruby
Jewel Setting:	Gold Settings (Screw-Set)
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Pendant
Plate:	Full Plate
Regulator:	Patent
Hairspring:	Breguet
Standard Dial Type:	Double-Sunk
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Case:	Various
Run ID:	12924.G40.18S8735.181883M642.O8964.P393.17J45
Data Research:	c.1900 Waltham Factory Ledger Book 2 [NAWCC] 1954 Waltham "Gray Book" List NAWCC Waltham Serial Digest
Database Version:	v52.517
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	49.67
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	45.20
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.049%
Registry Population: Scoped for This Run Only	6 (1.50%)
Research Note: Ruby Jewels in Gold Settings - In 1894, Waltham added 2 center jewels to the remaining inventory, modifying the movements from 15j to 17j. All 17j movements are marked as such.

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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.

vpprel Supporter 8 · January 3, 2024

Serial Number 3887263 was reported as inaccurate.

Note: Barrel bridge marked AT&Co, no serial number. From
run with CPR BB, so think factory put AT&Co BB on
this watch. Otherwise, correct.

Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.