Waltham Riverside 21 O Size

[GD1]

I picked up a nickel wire lug Waltham O size wristwatch and when I opened it up it had a Riverside 21 jewel movement. I can;t find it listed in the Shugert Guide. Serial number is Ca 1927. Are these uncommon? Thanks

 

[Don Dahlberg]

Go to http://pocketwatchdatabase.com/search/result/waltham/ and put in your serial number.

Don

 

[Jerry Treiman]

I have seen a fair number of these, mostly later Waltham movements. All that I have seen are actually 3/0 -- they share all of the same parts as the 0-size, but the dial plate does not have a lip on it, making it smaller.

 

[richiec]

What model 0 size are you referring? What is the actual serial number?

 

[GD1]

Serial number is 27219799. Riverside model, 21 jewels, marked Adj. Temp. Database says it's a 3/0. Thanks