Pocket Watch Database

From the American Horology Archive:
Hamilton Grade 900 Pocket Watch
Hamilton Grade 900 Pocket Watch

Hamilton Watch Co.

Grade: 900

Only Sold Cased by Hamilton

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 1924732
Grade: 900
Model: 1
Estimated Production Year: 1923
Run Quantity: 1,000
Grade/Model Run: 14 of 15
Grade/Model Total Production: 24,700
Size: 12s
Jewels: 19j
Jewel Material: Ruby & Sapphire
Jewel Setting: Raised Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Inlay Color: Black
Movement Setting: Pendant
Plate: Bridge Plate
Double Roller: Yes
Barrel: Patent Motor
Train Material: Gold
Center Wheel Material: Gold
Regulator: Micrometer
Hairspring: Breguet
Pallet Jewel Material: Sapphire
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: No
Dial Feet Locations: 10.5, 38.5, 56.0
Movement Markings: Hamilton
Lancaster, Pa.
19 Jewels
Adjusted 5 Positions
Safety Pinion
Data Research: 1953 Hamilton Serial List
Case: Various
Run ID: 2142.900G14.12S86.121M86.O1545.P632.19J71
Database Version: v52.235
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
74.36
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
32.63
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.232%
Registry Population: 10 (1.00%)
Research Note: Pillar Plate Diameter: 1.630"

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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.


JerryT Waltham Expert Small Watch Expert 425 · August 18, 2021

Serial Number 1924463 was reported as accurate.

Anonymous · May 24, 2020

Serial Number 1924795 was reported as accurate.

Walter 63 · May 29, 2019

Serial Number 1924466 was reported as accurate.

Anonymous · March 4, 2018

Serial Number 1924089 was reported as accurate.

Anonymous · September 8, 2017

Serial Number 1924089 was reported as accurate.

Anonymous · September 22, 2015

Serial Number 1924431 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · August 24, 2015

Serial Number 1924466 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · August 22, 2015

Serial Number 1924466 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · June 27, 2012

Serial Number 1924141 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes
Hamilton Grade 900 Pocket Watch
Hamilton Grade 900 Pocket Watch