Seiko 5R86 User Guide - Page 16

English SPECIFICATIONS 1 Features Hour hand, Minute hand, Small second hand, 24-hour h a n d , C a l e n d a r d i s p l a y, P o w e r r e s e r v e i n d i c a t o r. Stopwatch: Hour hand, Minute hand, Second hand 2 Frequency of crystal oscillator.......... 32,768 Hz (Hz = Hertz ... Cycles per second) 3 Loss/gain Within ±15 seconds per month (equivalent to ±1 second per day) (If the watch is worn on your wrist within normal temperature range between 5 ºC and 35 ºC.) 4 Operational temperature range........ Between -10 ºC and +60 ºC Under a low-temperature condition (below 0 ºC), always keep at least one-sixth of the watch power shown by the power reserve indicator. 5 Driving system Spring Drive (Automatic type with manual winding function) 6 Continuous operating time Approx. 72 hours (Approx. 3 days) *If the power reserve indicator shows the power supplied by the mainspring is full before starting the watch. 7 IC (Integrated Circuit Oscillator, frequency divider, and spring drive control circuit. (C-MOS-IC: 1 piece) 8 Jewels 50 jewels * The specifications are subject to change without prior notice for product improvements. 30