PARTS CATALOGUE / TECHNICAL GUIDE
Cal. 7T04A
[SPECIFICATIONS]
Cal. No.
Item
Interval of hands movement
Driving system
Additional function
Loss/gain
Regulation system
Gate time for rate measurement
Power
supply
Battery No.
Battery voltage
Battery life
Number of jewels
1/21
Crown
operation
Normal position
1st click position
2nd click position
Current consumption
Coil resistance
1 second
0 jewel
Stepping motor, 3 pieces
• Stopwatch function
60-minute stopwatch in 1/5-second increments.
• Battery life indicator (The small second hand moves at two-second
intervals.)
• Second hand stop function
• Electronic circuit reset function
• Big date indicator function
4002700 (COIL BLOCK and COIL BLOCK FOR SECONDS COUNTING)
2.10 - 2.70 K
Ω
Use 10-second gate.
SEIKO SR927SW
Nil
1.55 V
Approx. 5 years
7T04A
• 3 hands (hour, minute,
and small second
hand)
• 24-hour indicator
• Big date indicator
4002711 (COIL BLOCK FOR MINUTE COUNTING)
1.80 - 2.40 K
Ω
Free
Date setting(clockwise)
Time setting, hand position adjustment / resetting the circuit
Monthly rate: Less than 15 seconds (worn on the wrist at the tempera
-
ture between 5 and 35)
• Diameter
Outside: Ø 27.6 mm Casing: Ø 27.0 mm
• Height: 4.93 mm
Movement: Less than 1.10 μA
Circuit block: Less than 0.20 μA
To Next Page
Need help?
General
