Telegraph Room Clock

Telegraph Room Clock is a combined new product with the mechanical watch manufacturingtechnology of the latest electronic technology and the traditional combination,the core is made of metal materials. This product uses high frequency quartz resonator with small temperature coefficient as the frequency standard, a stepper motor drives the pointer indicating time through CMOS integrated circuit function. All crystals and circuits are carefully screened and with aging treatment.The clock is with timing accurate, reliable work, convenient use, less power consumption, and center second and marked with the quiet time full scale dial,double color pointer pointer. It is the necessary equipment in the ship's radio room,suitable for navigation and other departments.

Material: Brass

Showing Surface Diameter: 150mm/170mm

Size: 208/228mm*60mm

1. Oscillator: NDK 4.194304MHz

2. IC:5360, 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:≤±0.2s/day at +20℃±1℃, ≤±0.3s/day at 0℃~40℃

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

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

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

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

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