Seiko 4R35B Technical Manual

PARTS LIST / TECHNICAL GUIDE
[SPECIFICATION]
Item
・3 Hands (Hour, Minute and Second hands)
・Day and Date indication
Driving system
Time indication
Additional function
Normal position
1st click
Crown
operation
2nd click
Vibration per hour
Daily Rate
Loss/Gain
Standard rate
for measurement
Regulation system
Lift angle of the escapement
Power reserve
Continuous operating time
Number of Jewels
Automatic Cal.4R35B／4R36A
Cal. No.
Automatic winding with manual winding mechanism
・3 hands (Hour, Minute and
Second hands)
・Date indication
・Instant date setting device
・Second hand stop function
Date setting (counterclockwise)
Time setting (Hour and Minute) / Second hand stop function
21,600 (6 beats per second)
Between +45 and -35 seconds per day
(worn on the wrist at temperature range between 5°C and 35°C)
Testing positions Dial upward 6 o'clock
Measurement
(Daily rate in
seconds：s/d）
ETACHRON system
53°
From fully wound to stoppage: Approximately 41 hours
4R35B/4R36A
Movement Size
・Diameter
・Height
4R35B
Manual winding (clockwise only)
Instantaneous rate at T0
（Fully would condition)
at the top
± 20 s/d ± 30 s/d
23 Jewels
1/18
(The below figs. are for Cal.4R36A)
Outside ： φ27.4 mm
Casing ： φ27.0 mm
： 5.32 mm
4R36A
・3 hands (Hour, Minute and Second
hands)
・Day and Date indication
・Instant date setting device
・Instant day setting device
・Second hand stop function
Date setting (counterclockwise),
Day setting (clockwise)
Isochronous fault
9 o'clock
at the top
±30 s/d
± 30 s/d
24 Jewels
Dial upward