This is a large radio-controlled table clock, model 4RY684QN, from the Queen Elizabeth 2 (QE2) series by Rhythm Watch Co., Ltd. The body frame is made of natural green onyx, giving it a heavy and luxurious feel. It features an elegant and glamorous Swarovski element rotating decoration (moves slowly). This is a wonderful, high-class table clock that will enhance any interior. It operates on two AA batteries. This belonged to my father, and while I don't know the exact purchase date or usage period, it's in very clean condition with no noticeable stains. The operation and mechanism are in good working order. ● Manufacturer: Rhythm Watch Co., Ltd. ● Model Number: 4RY684QN ● Batteries: 2 x AA batteries ● Size: Width 24.3cm x Depth 11.3cm x Height 29.2cm ● Weight: Approximately 6.35kg Reference Price: 77,000 yen (tax included)