Is it possible , that a tube breaks in two parts, but the crown and the stem survive?
I have a old 1971 5513 , the half part of the tube is in the case and the other part is in the crown.
The stem seems to be total straight, winding works fine, time setting works fine.
Where to buy an new tube ? Is it correct, that this early 5513 with Triplock have no outside o-ring on the tube?