OK888 Tide Clock Mechanism 16.8mm Shaft Non Ticking & Hand

• OK888 extra quiet clock movement suitable for a clock face up to 8mm thick
• Shaft Length: 16.8mm; Gold Thread Length: 11.7mm; Thread Width: 7.6mm.
• Movement dimensions Height: 70mm (55mm without hanger) Width: 55mm; Depth: 16mm
• The hand measurements shown are taken from the center of the hand hole to the tip of the hand; a black end pin is included. Suitable for tide indicator clocks that run on one hand.
• "ROHS-approved, fitting instructions included"

"Tide clocks, or indicators,show how much time there is before high or low tide. The lunar day, or time it takes the moon to reappear at the same place in the sky, is 24 hours and 50 minutes. Most locations have two tides each day. Because of this, your tide hand rotates every 12 hours, 25 minutes, or twice daily."