Description Key Features: -Up to 10 ATM waterproof level, which can work normally at a depth of 100 meters (330ft) underwater. -Built-in timer and stopwatch function. -Dual time zone display, 12/24 hour format switchable. -Featuring alarm clock, calendar, back light and hourly chime functions. -Japanese quartz movement. -Shock resistant. -With comfortable and soft silicone watch strap. Parameters: Time Accuracy: ±30 seconds per month Maximum Depth Underwater: 100m (330ft) Water Resistance Level: 10 ATM Countdown Range: 23:59'59'' to 0:0'0'' Watch Shape: Square Display Type: Digital Movement: Japanese Quartz Battery Code: CR2025 Operating Battery Life Time: 1.5 to 2 years Watch Dial Window Material: High Transparency Resin Watch Case Material: ABS Dial Color: Gray Case Size: 36x36mm / 1.4x1.4inch Case Thickness: 9mm / 0.35inch Watch Strap Material: Silicone Watch Strap Color: Black Clasp Type: Pin Buckle Watch Strap Width: 20mm / 0.8inch Maximum Wrist Circumference: 235mm/9.3inch Minimum Wrist Circumference: 130mm/5.1inch Product Weight: 44g / 0.1lb Package Weight: 140g / 0.3lb Note: the watch battery is replaceable. If you find that the watch is not working or the text on the display is not clear, please replace the watch battery in time.

• -Support multiple useful functions, such as: alarm clock, hourly chime, calendar and back light.
• -The watch battery is replaceable. If you find that the watch is not working or the text on the display is not clear, please replace the watch battery in time.

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