English
20
SPECIFICATIONS
1 Features
4R57............................................................. 5 hands, time display (Hour, minute and second hands),
date display and power reserve indicator
2 Vibrations per hour .............................................. 21,600
3 Operational temperature range ........................... Between -10 ºC and 60 ºC (Between 14 ºF and 140 ºF)
4 Continuous operating time ................................ More than approx. 41 hours
5 Driving system .................................................... Automatic winding type with manual winding
mechanism
6 Jewels ................................................................ 29 jewels
7 Magnetic resistance ........................................... 4,800 A/m (60 gauss)
• The specifications are subject to change without prior notice for product improvement.
