Diameter 47 mm. High resistant stainless steel case. Swiss quartz movement 251.272. Water resistant to 200 M - 20 ATM (660 feet). Chronograph with 2 push-buttons. Function: display by means of hands, hours with time-zone mechanism, minutes, small jumping second at 6 o'clock, counter 1/10 second, 60 seconds, 30 minutes. Tachymeter. Night reading. Available with 5 different dials.