F-5/ 31681

Technical characteristics:

Mechanism:

Type: chronograph with manual winding
Caliber: 31681
Number of stones: 25
Shock resistant device: yes
Balance swing period: 1/3s
Working time: 42 hours, with a stopwatch function off, 37 hours with a stopwatch function on


Functions: hours, minutes, seconds, calendar, stopwatch, chronograph, 24-hour pointer
Body: stainless steel
Glass: mineral
Wristlet: leather
Size: 47x53x13 mm
Water resistance: 3 atmosphere
Water resistant watch with no indication of overpressure
or with the indicated pressure of 2 gauge atmosphere, 3gauge atmosphere (2bar, 3bar or 20m, 30m)
protects from splashes and water with no


40000 视先臆