Specifications – Seiko 5R64 User Manual
Page 13
English
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SPECIFICATIONS
1
Features ............................................................ 3 hands (Hour and Minute hands, Second hand or
Small second hand), Date display, Power Reserve
Indicator
2
Frequency of crystal oscillator .......................... 32,768 Hz (Hz = Hertz … Cycles per second)
3
Loss/gain ........................................................... Within 15 seconds per month (equivalento to 1
second per day) (If the watch is worn on your wrist
within normal temperature range between 5 C and
35 C.)
4
Operational temperature range ......................... –10 C ~ +60 C
Under a low-temperature condition (below 0 C),
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
Hand movement ............................................... Glide-motion second hand
7
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.
8
IC (Integrated Circuit) ........................................ Oscillator, frequency divider, and spring drive control
circuit ( C-MOS-IC: 1 piece)
9
Jewels ............................................................... 5R64: 32 jewels, 5R65: 30 jewels
*
The specifications are subject to change without prior notice for product improvements.
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