Sports step, luminous, alarm, chronograph, 50m waterproof. Case material: plastic Crystal material: plastic mirror Strap material: PU Buckle type: pin buckle Battery model: CR2032 Weight: 0.05kg Sales color: red, blue, black, gray, military green, etc. Brand: Skmei Product weight: 0.0500 kg Product size: 26.50 x 5.20 x 1.40 cm / 10.43 x 2.05 x 0.55 inches Package weight: 0.0680 kg Package size: 6.00 x 6.00 x 8.00 cm / 2.36 x 2.36 x 3.15 inches Package Contents: 1 x Watch, 1 x Box