Seiko 4R35A Technical Manual

PARTS LIST / TECHNICAL GUIDE
[SPECIFICATIONS]
Item
• 3 hands (hour, minute and second hands)
• Date indication
Driving system
Time indication
Additional function
Crown operation Normal position
st click position
2nd click position
Vibration per hour
Daily rate worn
Loss/Gain
on the wrist at
t e m p e r a t u r e -
range between
5 °C and 35 °C)
S t a n d a r d r a t e
for measurement
Regulation system
Lift angle of the escapment
Power reserve
Number of jewels
Automatic Cal. 4 R35A
Cal. No.
Automatic winding with manual winding mechanism
• 3 hands (Hour, Minute and Small Second hands)
• Date indicator
• Date correction function
• Second hand stop function
Manual winding (clockwise only)
Date setting (counterclockwise)
Time setting (Hour and minute)
Second hand stop
2,600 (6 beats per second)
Between + 45 and - 35 seconds
Mainspring
wind up status
Testing positions
Measurement
(daily rate in
seconds:s/d)
ETACHRON system
52 °
From fully wound to stoppage: Approximately 4 hours
23 jewels
4R35A
Movement size
• Diameter Outside:
Casing:
• Height:
Fully wind up
Dial upward: 6 o'clock
T0 (CH) at the top
± 20 s/d
± 30 s/d
/8
Ø 27.4 mm
Ø 27.0 mm
5.25 mm
After 24 hours
from fully wind
up
Dial upward :
9 o'clock
T24 (CH)
at the top
(Isochronism
± 30 s/d
fault: T24-T0)
± 30 s/d