44.5mm. 6-month power reserve once fully charged. Date calendar.
Seiko Solar Chronograph. This racer style men’s watch is designed with a stainless steel case and bracelet. The black dial with highlights of red display three subdials and a date calendar, while the chronograph measures up to 60-minutes of elapsed time in 1/5 increments, including a split time measurement function and a 24-hour indicator. Powered by any light energy, its Solar Cell is energy-efficient with a 6-month power reserve once fully charged. No battery change is required. 100M Water Resistant