Waltham Pocket Watch: Serial Number 6507948 (Grade K)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/waltham/6507948

Access Date: January 03, 2025

From the American Horology Archive:

American Waltham Watch Co.

Grade: K

Manufacturer:	Waltham
Manufacturer Location:	Waltham, Massachusetts
Movement Serial Number:	6507948
Grade:	K
Model:	1890
Estimated Production Date:	January 31, 1900 - February 1900
Run Quantity:	1,000
Grade/Model Run:	9 of 17
Grade/Model Total Production:	23,400
Size:	6s
Jewels:	15j
Jewel Material:	Ruby
Jewel Setting:	Gold Settings (Screw-Set)
Movement Configuration:	Hunting
Movement Finish:	Nickel
Movement Setting:	Pendant
Plate:	3/4 Plate
Regulator:	Patent
Hairspring:	Breguet
Adjusted:	Yes
Railroad Grade:	No
Case:	Various
Run ID:	14738.G12.6S397.61890M106.H4001.P1410.15J3525
Data Research:	c.1900 Waltham Factory Ledger Book 2 [NAWCC] 1954 Waltham "Gray Book" List NAWCC Waltham Serial Digest
Database Version:	v52.537
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	70.45
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	64.11
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	0.070%
Registry Population: Scoped for This Run Only	3 (0.30%)
Research Note: Waltham Serial Ledgers designate the block 6,506,981-6,508,000 as Grade No. 28 (16-Size, Nickel, 15 Jewels). The Waltham ?Gray Book? Serial List is in conflict, designating the block 6,507,001-6,508,000 as Grade K (6-Size, Model 1890, 15 Jewels). Various observations and reports within this run supports and validates the ?Gray Book? information. #6507295: Reported as 6-Size Model 1890. #6507948: Reported as 6-Size Grade K with 15 Jewels. #6507458: Reported as 6-Size with raised gold settings (consistent with Grade K). #6507957: Verified as a 6-Size Model 1890 [NAWCC]. As a result, the original run from the handwritten serial ledgers has been split in the database to correlate with the ?Gray Book? information.

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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.

DONNASWATCHES 19 · November 26, 2019

Serial Number 6507295 was reported as inaccurate.

Note: This serial number is an 1890 model size 6
possibly a 16/17jewel

Changes since this report was submitted:

Size changed from 16 to 6

Movement Configuration changed from Openface to Hunting

Factory Model changed from 1888 to 1890

Anonymous · November 14, 2019

Serial Number 6507948 was reported as inaccurate.

Note: 6s K Riverside 15 jewels
Listed in Grey Book correctly

Changes since this report was submitted:

Size changed from 16 to 6

Movement Configuration changed from Openface to Hunting

Factory Model changed from 1888 to 1890

Anonymous · October 16, 2019

Serial Number 6507209 was reported as accurate.

Changes since this report was submitted:

Size changed from 16 to 6

Movement Configuration changed from Openface to Hunting

Factory Model changed from 1888 to 1890

Anonymous · April 23, 2019

Serial Number 6507458 was reported as inaccurate.

Note: Serial number 6507458 is a 6 size with gold raised
jewel settings. Hunting case movement

Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Changes since this report was submitted:

Size changed from 16 to 6

Movement Configuration changed from Either to Hunting

Factory Model changed from 1888 to 1890

Movement Setting changed from Key to Pendant

Anonymous · July 26, 2017

Serial Number 6507990 was reported as inaccurate.

No further details were submitted with the report.

Changes since this report was submitted:

Size changed from 16 to 6

Movement Configuration changed from Either to Hunting

Factory Model changed from 1888 to 1890

Movement Setting changed from Key to Pendant

Anonymous · July 20, 2016

Serial Number 6507557 was reported as inaccurate.

Note: I have serial number 6507557 "safety barrel",
hunter case, 15 jewels, and the dial also looks
like an O'Hara, with gold numerals shadowed on a
white dial. The gold hands are reminiscent of a
Hoadley and Williard style. Watch is very similar
in description to 6507754. Case is a scalloped
edged Keystone gold filled case with the scales
and amphora 2683324 .

Changes since this report was submitted:

Size changed from Unknown to 6

Movement Configuration changed from Openface to Hunting

Factory Model changed from 1888 to 1890

Movement Setting changed from Key to Pendant