Swiss made, automatic, 25.60 mm/4.6 mm, 28,8000 vph (4Hz), 25 jewels. Hours, minutes, sweep second, date, corrector, stop second device. ETACHRON regulator system and regulator corrector. This is one of the main workhouse ETA calibers. Comes in Standard, Elaborated (improved), Top and Chronometer grades.

Posted by:Prowatches