Pocket Watch Database

From the American Horology Archive:
South Bend Grade 337 Pocket Watch

South Bend Watch Co.

Grade: 337

Mixed Run: Grade 345 and 337

Manufacturer: South Bend
Manufacturer Location: South Bend, Indiana
Movement Serial Number: 534612
Grade: 337
Model: 2
Estimated Production Year: 1908
Run Quantity: 500
Grade/Model Run: 1 of 1
Grade/Model Total Production: 500
Size: 18s
Jewels: 17j
Jewel Material: Ruby
Movement Configuration: Openface
Movement Finish: Nickel
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Double Roller: Yes
Regulator: Precision Nut & Screw
Standard Dial Type: Single-Sunk
Adjusted: No
Case: Various
Registry Population: 1 (0.20%)
Database Version: v49.701
Research Note: This run is designated as Grade 345 in factory serial lists. However, examples of Grade 337 movements have been found in the run (marked "337" on the barrel bridge). The majority of the first half of the run has been determined to be consistent with Grade 345 while the second half is consistent with the 337 classification despite obvious overlap between these groups. The database has been segmented accordingly, but mixed results are still possible and expected. #534279 and #534299 Verified as Marked "337" (17 Jewels, Marked, Gilded Screws/Regulator, No Adjustments Indicated); #534046 Verified as Marked Grade 345.

Production Metrics Tree: Grade 337

Target Profile: 18S-M2-17J-ONL-U

South Bend Grade 337 (All Variations): 500 ETP
18S: 500 100.00%
18s, Grade 337
18S-M2: 500 100.00%
18s, Grade 337, Model 2
18S-M2-17J: 500 100.00%
18s, Grade 337, Model 2, 17 Jewels
18S-M2-17J-ONL: 500 100.00%
18s, Grade 337, Model 2, 17 Jewels, Openface/Lever/Nickel
18S-M2-17J-ONL-U: 500 100.00%

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1
Image Credit: rjandladyj
534612 #112 Collection July 08, 2016
Standard Deviation of Known Examples: 0.00 (Expected: 144.48, Δ144.48/28.90%)

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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.


Anonymous · November 20, 2019

Serial Number 534613 was reported as accurate.

Changes since this report was submitted:
Grade changed from 345 to 337
Adjusted changed from Yes to No

Anonymous · February 7, 2019

Serial Number 534939 was reported as accurate.

Changes since this report was submitted:
Grade changed from 345 to 337
Adjusted changed from Yes to No

rjandladyj 156 · July 3, 2016

Serial Number 534612 was reported as accurate.

Changes since this report was submitted:
Grade changed from 345 to 337
Adjusted changed from Yes to No

Anonymous · May 29, 2012

Serial Number 534635 was reported as accurate.

Changes since this report was submitted:
Grade changed from 345 to 337
Adjusted changed from Yes to No
South Bend Grade 337 Pocket Watch