Movement Date Code
Movement Serial No.
Case Serial No.
case 1928, movement 1929
Posted October 29, 2015 - 5:21pm
Posted October 29, 2015 - 5:51pm
Posted October 29, 2015 - 9:19pm
Posted October 30, 2015 - 6:19am
Posted November 1, 2015 - 2:04pm
Posted November 1, 2015 - 2:08pm
Alex, if the case date and movement date are "close" and there's no obvious indication of a movement swap (although this happened often), we date as most recent. There's the scenario where case was manufactured end of 1928 and not fitted w/ movement until after the holidays.....
...or its a movement swap w/ another 5AP....but our convention is to use the latter date for these instances.
Compare the engravings on the side of subject watch to Dacca's 1929 example here.