Limited Edition SEIKO Seiko Metronome Watch Elegant Series White x Navy SMW002AP N New, Unused Instruction Manual Warranty Equipped with a metronome function, it can also be used as a regular watch. ◯ Drive System: Battery-powered quartz ◯ Main Functions: Time, Metronome, Standard Tone Generation ◯ Power Supply: CR 2016 x 1 ◯ Water Resistance: Daily Life Waterproof ◯ Band Material: Leather ◯ Case Diameter: Thickness: 10 mm, Width: 36.5 mm, Length: 39.6 mm ◯ Weight: 48g ◯ Wrist Circumference (Maximum): 185mm ◯ Band Width: 18mm Stored at home, so thank you for your understanding.