4SN

Start Year
1924
End Year
1925
Jewels
17
FifthAvenueRes…
Posted June 20, 2013 - 8:25pm

JP
Posted June 21, 2013 - 4:39pm

Weren't watches from that period signed Bulova W Co. up to a certain year??

Reverend Rob
Posted June 21, 2013 - 5:52pm

From a Sonceboz 253 ebauche. Not common at all. 

FifthAvenueRes…
Posted July 3, 2013 - 12:16pm

Alex
Posted September 16, 2014 - 11:57pm

I spotted a 4SN with circle = 1925 date code. Picture will follow.

Alex
Posted September 17, 2014 - 12:08am

   

Alex
Posted September 17, 2014 - 12:15am