Waltham Serial Numbers

Reported Observations

The data shown is from a public contribution using the observations entry form. Where the observer did not provide data for a field, it is filled in from the serial number database entry for the run containing the serial number. Information provided is highlighted in a gold color. The remaining information is highlighted the same as the serial number lookup form.

To share a new observation, enter the serial number in the box and click on the search icon.


Serial Number
Total made 82000 Total runs 96
Start May 1890 End Jul 1890
First 4383501 Last 4384000
Model 1883 Name No 15 PS Bartlett Gr
Grade 15 Material A
Size 18 Size 18
Plate FP Note SW
Jeweling 4 Pairs Jewels 15
Balance Ex Bal Pat. Reg. - Breg. HS
Style OF Style OF
Comment Ch SW OF nickel PS P Reg BH
Source 2p149n4374001_4404500.pdf gp030n4340001_4561000.pdf
Provider Date
Regulator Balance
Jeweling Jewel Ct
Model Size
Plate Style
Finish Winding
Setting Hairspring
Adjustment Grade
Marking
Dial
Case
Remarks
Watch Page


Observation List

You may view a list of observations by date. The dates are the dates of the data entry. Use the After date to find all observations entered after that date. Use the Before date to find all observations before that date. Or, use both to specify a date range.

The earliest observation date is after January 2002. Choosing that for the After date will show all the observations.

Click on the serial number to see the observation entry form.


Find observations After and/or Before