Seiko 8T67A Parts Catalogue /Technical Manual

PARTS CATALOGUE / TECHNICAL GUIDE
Cal. No.
Item
・3 Hands:
Hour, Minute, and 1/5 second chronograph hand
・Small Second : Small second hand(6H), Minute chronograph hand (12H),
Hour chronograph hand(9H)
Driving system
Additional function
Normal position
Crown
operation
1st click position
2nd click position Time setting, Resetting the circuit
Loss/Gain (Monthly rate)
Frequency of crystal oscillator
Operational temperature range
Regulation system
Gate time for rate measurement
Current consumption
Coil resistance
Battery No.
Power
supply
Battery voltage
Battery life
Jewels
Cal.8T67A
Step motor 2 pieces
・Stopwatch function up to 12 hours in 1/5 second
・Date display with quick correction.
・Energy depletion forwarding function
(The second hand moves at two-second intervals.)
Free
Date setting (clockwise)
Less than 15 seconds at normal temperature range
32,768 Hz
-5℃ ~ +50℃
Nil
Use 10-second gate
・Movement: Less than 2.7μA
・Circuit block: Less than 0.7μA
・4002054（Coil block A): 1.45 - 1.65KΩ for chronograph
・4002055（Coil block B): 1.65 - 1.85KΩ for time display
SR936SW (Silver oxide battery)
1.55V
Approximately 3 years
0 jewel
1/20
8T67A
Movement Size
・Outside diameter: 30.8 mm
・Casing diameter
・Height：
29.0 mm
5.1 mm