Made of durable wooden casing and copper - zinc alloy movement , safe , environmentally friendly and durable .
this chess clock does not require batteries , is driven by a clockwork , and is , similar to the operation of a quartz clock .
made of durable wooden casing and copper - zinc alloy movement , safe , environmentally friendly and durable .
the game clock adopts a mechanical structure with a timing start button . the game timing operation is intuitive , convenient , accurate , and the daily error is not more than 1 second . it is suitable for timing clocks for various chess games .
package includes: 1 piece retro analog chess clock timer