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 295489 Total runs 2885
Start Nov 1865 End Nov 1865
First 187951 Last 188200
Model 1857 Name PS Bartlett
Grade PSB Material A
Size 18 Size 18
Plate FP Note NL
Jeweling 4 Holes Jewels 11
Balance Ex Bal Bal Assorted
Style KW Style NL
Comment
Source 1p096n183491_191600.pdf gp002n115001_378000.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