Luminous, week display, alarm, chronograph, month display, calendar, 30m swimming waterproof Movement: electronic movement Case material: plastic case Crystal material: plexiglass mirror Strap material: plastic Buckle type: pin buckle Battery model: CR2016 Strap width: 2.2cm Product weight: 0.0400 kg Product size: 25.00 x 5.00 x 1.20 cm / 9.84 x 1.97 x 0.47 inches Package weight: 0.0580 kg Package size: 8.00 x 8.00 x 6.00 cm / 3.15 x 3.15 x 2.36 inches Package Contents: 1 x Watch, 1 x Box