CASIO WS-1700H-8AV Men's Digital Watch with Tide Graph and Moon Data Display, Dark Gray

---------------------------------------------------------------------- [Dimensions] Case size: 52.5mm (height) x 48.6mm (width) x 15.2mm (thickness), Strap: Width approx. 21mm (buckle side) - 28mm (case side), Lug width approx. 18mm, Band size: 145-215mm, Weight: approx. 48g [Materials] Case: Resin, Band: Polyurethane, Crystal: Resin glass [Waterproof performance] 10 ATM water resistance [Accessories] Japanese instruction manual (copy), instruction booklet in a foreign language, plain generic box (not a Casio box) 【Main Functions】 ● Dual Time ● Moon Data (Moon Phase and Shape Display) ● Tide Graph ● Stopwatch (1/100 second, 24-hour counter, with split function) ● Timer (Setting unit: 1 minute, Maximum setting: 24 hours, Measured in 1-second increments, Auto-repeat) ● 3 Multi-Alarms (1 with snooze function) and Hourly Time Signal ● LED Backlight (Afterglow function, Afterglow duration switching (1.5 seconds/3 seconds), Light color: Amber) ● Full Auto Calendar ● Operation Sound ON/OFF Switching Function ● 12/24 Hour Format Switching ● Average Monthly Difference: ±30 seconds ● Battery Life: Approximately 10 years (*This value is based on replacing the battery with a new one after purchase. The battery pre-installed in the watch at the time of purchase is a monitor battery installed during manufacturing to check the functions and performance of the watch, and will run out in a short period of time.)