kratzjoseph60
Posted April 2, 2022 - 11:49am
In reply to Does yours also have the… by GuyMontag
The screw on the back is purposeful and was from the factory. It is there so that you can remove the stem when servicing the watch. The 12 EBA and similar movements never came with a split stem so to remove the stem from the watch you would have to loosen the set lever screw on the movement. The access port on the back of the watch is there so the watchmaker could reach said screw. The screw cap does have a seal on it so it is waterproof as long as the gasket is in tact. I wouldn't test it though!