"Quartz clock: analogue wall clock with quality movement (+/- 0.5 seconds/day), making it much more accurate than other quartz wall clocks Sweep movement: the innovative ""sweep"" movement reduces ticking of the watches to a minimum and works almost silently Dial: the dial of the watch is made of slate with engraved hour markers with hands made of walnut wood Clock: The wall clock is powered by a 1.5 V AA battery (not included), the wall clock has a long battery life of approx. 3 years when using a full battery Box contents: the wall clock with a diameter of 25 cm and the instruction manual is included"