From the alpina seastrong hsw collection, this men's watch features a black dial with a push down crown, activity & sleep tracking, dynamic coaching, call & message notifications, and a world timer in a 45. 5mm green resin case. The reliable japanese quartz movement ensures accurate time keeping. The green rubber strap secures with a buckle clasp. Water-resistant to 100 meters, this watch includes a one-year limited manufacturer warranty.