Pocket Watch Database

From the American Horology Archive:
South Bend Grade 431 Pocket Watch

South Bend Watch Co.

Grade: 431

Manufacturer: South Bend
Manufacturer Location: South Bend, Indiana
Movement Serial Number: 700306
Grade: 431
Model: 1
Estimated Production Year: 1911
Run Quantity: 1,000
Grade/Model Run: 2 of 3
Grade/Model Total Production: 2,500
Size: 12s
Jewels: 21j
Jewel Material: Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Inlay Color: Gilt
Movement Setting: Pendant
Plate: Bridge Plate
Bridge Type: Center Bridge, 2-finger
Double Roller: Yes
Regulator: South Bend Needle
Pallet Jewel Material: Ruby
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: No
Movement Markings: South Bend Watch Co.
Ind., U.S.A.
Adjusted to
Temp & 5 Pos'ns
431
21 Jewels
Double Roller
Case: Various
Run ID: 343.431G2.12S12.121M12.O197.P98.21J22
Data Research: 1917 South Bend Serial List
Database Version: v52.335
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
7.52
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
25.00
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.291%
Registry Population: 9 (0.90%)

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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.


tctimepieces Supporter 103 · September 27, 2023

Serial Number 700306 was reported as accurate.

ChrisG Top Contributor Supporter 558 · August 3, 2023

Serial Number 700149 was reported as inaccurate.

Note: Verification image : 235113736134
Curator Response: Thanks!

Anonymous · March 19, 2021

Serial Number 700352 was reported as accurate.

wulum1 6 · September 3, 2018

Serial Number 700230 was reported as accurate.

Anonymous · December 1, 2014

Serial Number 700085 was reported as accurate.

Anonymous · September 24, 2014

Serial Number 700089 was reported as accurate.

Anonymous · October 4, 2013

Serial Number 700027 was reported as accurate.

RAF777 94 · September 16, 2013

Serial Number 700352 was reported as accurate.

South Bend Grade 431 Pocket Watch