Pocket Watch Database

From the American Horology Archive:
South Bend Grade 312 Pocket Watch

South Bend Watch Co.

Grade: 312

Manufacturer: South Bend Question Mark
Manufacturer Location: South Bend, Indiana Question Mark
Movement Serial Number: 537505 Question Mark
Grade: 312 Question Mark
Model: 2 Question Mark
Estimated Production Year: 1908 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 1 of 1 Question Mark
Grade/Model Total Production: 1,000 Question Mark
Size: 18s Question Mark
Jewels: 17j Question Mark
Jewel Material: Ruby & Sapphire Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Pinwheel With Wide Ribbon Question Mark
Movement Setting: Lever Question Mark
Plate: Full Plate Question Mark
Double Roller: Yes Question Mark
Regulator: Precision Nut & Screw Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: No Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: No Question Mark
Movement Markings: South Bend Watch Co.
South Bend, Ind.
312
Adjusted
17 Jewels
Double Roller
Case: Various Question Mark
Run ID: 168.312G1.18S65.182M20.H81.L165.17J62 Question Mark
Data Research: 1917 South Bend Serial List
Question Mark
Database Version: v52.470 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
3.01 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
9.38 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.116% Question Mark
Registry Population:
Scoped for This Run Only
11 (1.10%) Question Mark

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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.


okiejohn 387 · April 15, 2021

Serial Number 537083 was reported as inaccurate.

Note: This movement is NOT marked "Adjusted". It also IS
marked as "Double Roller" (databese has it default
as "no" ).
Curator Response: Thanks for the report. The double roller designation has now been corrected. However, your movement is indeed marked "Adjusted" on the barrel bridge.
Changes since this report was submitted:
Double Roller changed from No to Yes

dfurtado 122 · October 1, 2020

Serial Number 537606 was reported as accurate.

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

Anonymous · September 29, 2019

Serial Number 537321 was reported as accurate.

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

Smpoyser 59 · July 12, 2017

Serial Number 537718 was reported as accurate.

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

Anonymous · March 10, 2017

Serial Number 537881 was reported as accurate.

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

Anonymous · October 29, 2015

Serial Number 537511 was reported as accurate.

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

Anonymous · October 28, 2015

Serial Number 537511 was reported as accurate.

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

mehuffer 70 · December 12, 2013

Serial Number 537961 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes
South Bend Grade 312 Pocket Watch