Seiko Prospex Sky Solar Chronograph SSC275 Pro Trek by Casio Smart Outdoor Watch WSD-F20RG A movement powered by a

A movement powered by a battery

Selectable illumination Duration: (1

to completely new levels

Band: Extra-strength silicon

Patent: Amortiser® patented anti-shock system

Seiko Prospex Sky Solar Chronograph SSC275 Pro Trek by Casio Smart Outdoor Watch WSD-F20RG A movement powered by aCaliber: V175 Movement: Solar Powered by: light energy Chronograph Measures: up to 60 minutes in 1 5 second increments with split time measurement function When the measurement reaches 60 minutes, the stopwatch automatically stops counting Power Reserve: 6 month once fully charged LumiBrite: hands and markers Caseback: Screwdown Case Size: 44mm Function: Hour Minute small second hands 24 hour indicator Date calendar