Dugena Mechanical *Jump Hour* very rare Jumbo style Men The watch's mechanism belongs to the Dugena-Amida joint production, which is very rare and valuable. Case diameter : 39 mm (without crown) 41,5 mm (with crown). The lug is 20 mm. Lug to lug : 35 mm Crystal: acrylic No box and paper Photos are part of the description. Please look at them carefully. Please, be aware of customs duty. Customs duties are the buyer's responsibility and beyond the control of sellers. The case has not been polished. We do not guarantee water resistance on vintage watches. Accuracy of + or - 5 minutes per day is acceptable for vintage watches. Please also check my other watches.