Mechanical caliber 3133, hand-wound,
diameter 31 mm, 23 Ruby jewels,
shock protection, mean-daily rate from -20 to +40 sec/day,
balance periode 21,600h, 42-hour power reserve with chronograph switched off,
37-hour power reserve with chronograph switched on.
hronograph, 30-minute counter,
hours, minutes, seconds, day-of-the-month calendar.
Slightly rounded edges, diameter: 40 mm, height: 14 mm.
Right side of dial: minutes counter,
left side of dial: seconds counter, calendar at "6 o'clock
Comes with leather band 18mm.