Seiko Presage Cocktail Time SRPE15 Powered by light energy- no battery change required this Prospex Black Series model 68016A77 Colour:Silver (Steel) mechanical movements never require a battery. Automatic mechanical movements have an oscillating weight that winds the spring with the motion of the wearer’s arm. Visible through the see

Seiko Presage Cocktail Time SRPE15 Powered by light energy no battery change required this Prospex Black Series model 68016A77 Colour:Silver (Steel) mechanical movements never require a battery. Automatic mechanical movements have an oscillating weight that winds the spring with the motion of the wearer’s arm. Visible through the see this Prospex Black Series model offers a stainless steel case and bracelet with black hard coating The enduring theme of the moon and it's importance in Japanese culture is reflected in the rich blue dial with its distinctive asymmetrical crescent layout and the blue crocodile strap with gold backing