Submarine Clock

Submarine Clock (24 hour Clock)

Material: Brass

Showing Surface Diameter: 150mm/170mm

Size: 208/228mm*60mm

1. Oscillator: NDK 4.194304MHz

2. IC:5512, Frequency dividing factor:223,Pulse Duration:46.875ms, Qutput Frequency: 0.5Hz

3. Transducer System: bipolar eccentric step motor, Torque on minute hand≥10×10-3Nm

4. Time Keeping Accuracy:≤±0.3s/d at +20℃±1℃, ≤±0.5s/d at 0℃~40℃

5. Operating Temperature Range:-10℃～+50℃

6. BatteryLife: over one year (battery size UM+2)

7. Resistance to vibration and Impact Perfor-mance:(The clock should run normally at following conditions)

1) Vibration Frequency:80Hz, Acceleration:2g

2) Impact Acceleration:5g, Duration:30 minutes

8. Antimagnetic Performance:≥7 oster

9. Waterproof Rating：IP22