Smartwatches accessories -clock insert decorate battery customize Highlights brand generic clock insert decorate battery customize Description: Dimension: the total diameter of the clock insert is 103 mm (4.06 inches), this which corresponds to the maximum outer diameter of the front face, colored bezel included. Features: The quartz clock insert features a silver trim, clear plastic lens and black Roman numerals on a white dial for easy reading. Mounting diameter: fit round hole diameter: 91 mm (3.58 inch); Mounting Depth: 1.1 inch (28mm); Ideal for crafts or replacing old dials. Plastic Band Mounting System: Complete with plastic band gasket to firmly hold the insert in place allowing for a slight unevenness in the hole. Power supply: requires 1 AAA battery (not included); Warm Note: Clock is designed for indoor use only, not weatherproof. Material: Metal, Plastic Package Include: 4pcs Quartz Clock Insert Note: As the above size is measured by hand, the size of the item you received might be slightly different from the above . Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.