This is a s/steel and gold oyster case band , auto date , cal.740 , super oyster crown
red and black date [ so called roulette date ] ref.6031 [ 36 m/m dia. case ] c1951
signed case , dial , movement , band [ orig. later added steel & gold band ]
Lately, I have managed to come across a nice Big bubbleback 6031 and the desire to try to add in the big bubbleback to my bubbleback collection grew. I have managed to find the small bubbleback, the medium size bubbleback, the semi bubbleback but not the Big bubbleback Ovettone. Now, I am eagerly waiting for the arrival of my Ovettone! The bracelet is a later Rolex bracelet..