In reply to Thanks for all your answers by VerenaBerhan
To answer your 'additional information' question, there is no way other than what we and like minded Bulova enthusiasts are doing elsewhere. The Bulova name has changed hands a couple times (currently owned by Citizen - yes, THAT Citizen, the watch company) and really doesn't have an historian per se. The company states that during an office move many years ago, all of the 'old records' were lost/destroyed/misplaced or 'fell off a truck', which means that we are trying to reconstruct that history through print ads and other ephemera we can dig up. We think we have a pretty good method of identifying production years by case serial numbers and movement codes although we can never know for certain that there hasn't been 'swapping' over the years since many of these movements fit several case sizes. Since Bulova didn't produce every part they used we do have facts on base movement suppliers as RevRob states as well. It's all a bit of detective work and bit of speculation (but not Rob's comment - that IS fact). Thanks for stopping by, hope we've helped. By the way, if you're not sure of the service record on your watch, be sure to have it serviced if you're going to use it regularly. It's lasted all these years, let's make sure it still works a couple generations down the road!