Waltham Pocket Watch: Serial Number 18128161 (Grade No. 645)

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/waltham/18128161

Access Date: April 19, 2024

From the American Horology Archive:

American Waltham Watch Co.

Grade: No. 645

Manufacturer:	Waltham
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	18128161
Grade:	No. 645
Model:	1908
Estimated Production Year:	1911
Run Quantity:	1,200
Grade/Model Run:	14 of 66
Grade/Model Total Production:	59,300
Size:	16s
Jewels:	21j
Jewel Material:	Ruby
Jewel Setting:	Screw-Set
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Lever
Plate:	Bridge Plate
Double Roller:	Yes
Barrel:	Jeweled Motor
Regulator:	Church 1892
Hairspring:	Breguet
Pallet Jewel Material:	Sapphire
Standard Dial Type:	Double-Sunk
Adjusted:	Yes
Adjusted to Position:	Yes
Adjusted # of Positions:	5
Adjusted to Temperature:	Yes
Adjusted to Isochronism:	Yes
Railroad Grade:	Yes
Data Research:	1954 Waltham "Gray Book" List NAWCC Waltham Serial Digest
Case:	Various
Run ID:	21773.G20.16S2768.161908M343.O13541.L5300.21J402
Database Version:	v52.235
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	178.54
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	162.47
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.177%
Registry Population:	18 (1.50%)
$ Estimated Value (12 Month Change):	-3.13% Analyzing 454 Sales

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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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.