Chess Clock Mechanical Chess NO Battery reqire Competition Watch Timer Countdown Chess Watch Retro Analog Chess Play Black

Wind-up chess clock operates without batteries offering a user-friendly experience akin to quartz clocks. Made with a plastic casing and zinc alloy movement this clock measures 15x5.5x9cm and comes in a 19x7x12cm box weighing 280 grams without packaging. Available in black with additional colors like green blue red and yellow. Packaged in a colorful box 20 units fit into an outer box measuring 40x39x28cm with a gross weight of 8KG. Technically each clock has two movements lasting over 36 hours per wind and with a daily accuracy of 3 minutes. To use place on a flat surface wind the clock according to the arrow on the back set the hands and start with the left or right button. Adjust the speed if needed using a small metal rod through the moon-shaped hole on the back. Maintain by avoiding contact with corrosive substances direct sunlight rain drops and strong magnetic fields.