DT05a Retro Wood Shell Chess Clock Mechanical International Chess Clock, DT05a % Speaker Ringer Buzzer sleep score and Insights

DT05a Retro Wood Shell Chess Clock Mechanical International Chess Clock, DT05a % Speaker Ringer Buzzer sleep score and Insights1. No batteries, clockwork drive, easy to use, similar to the operation of quartz clocks 2. Divided into two movements, left and right, each fully wound can continue to go not less than 36 hours, time accuracy of about 3 minutes a day error 3. Material: plastic shell, zinc alloy movement 4. Maintenance: chess clock should be prevented from contact with corrosive substances, avoid exposure to the sun, rain, drops and close to strong magnetic fields 5.

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