Detachable wristwatch design, lightweight and portable, convenient to carry. High quality compass lens and ABS waistband, sturdy and durable in use. High sensitivity and stability, keep accuracy under extreme weather condition. Side visual window with red visible lubber line design for top reading accuracy. Great for outdoor activities, underwater caving, camping, hiking, hunting, etc. Specifications: Material: ABS++Rubber Color: Black/Blue/Yellow/Grey (optional) Underwater Work Temperature: -30-60 Waterproof Depth: 50M Storage Temperature: -22-140 Compass Size: 6.5 * 6.5 * 3.6cm / 2.6 * 2.6 * 1.4in Watchband Size: 37.3 * 3.6cm / 14.7 * 1.4in Item Weight: 113g / 4oz Package Size: 13.5 * 8 * 5.5cm / 5.3 * 3.1 * 2.2in Package Weight: 169g / 6oz Package List: 1 * Compass 1 * Watchband Specifications: Material: ABS++Rubber Color: Black/Blue/Yellow/Grey (optional) Underwater Work Temperature: -30-60 Waterproof Depth: 50M Storage Temperature: -22-140 Compass Size: 6.5 * 6.5 * 3.6cm / 2.6 * 2.6 * 1.4in Watchband Size: 37.3 * 3.6cm / 14.7 * 1.4in Item Weight: 113g / 4oz Package Size: 13.5 * 8 * 5.5cm / 5.3 * 3.1 * 2.2in Package Weight: 169g / 6oz Package List: 1 * Compass 1 * Watchband