Seiko Presage Cocktail Time Power Reserve (SSA361) SSA356

The Seiko Presage Cocktail Time Power Reserve, reference SSA361, is an automatic dress watch from Seiko's Presage "Cocktail" line, launched alongside its pink Sakura Hubuki sibling SSA363. It runs on Seiko's self-winding caliber 4R57, which drives central hour, minute and second hands together with a central power-reserve indicator and a pointer (hand-type) date sub-dial at 6 o'clock. The 40.5 mm polished stainless-steel case is 14.4 mm thick and topped by a box-shaped Hardlex crystal, with a Starlight Blue lacquered Cocktail Time dial and a see-through caseback showing the movement. It is water resistant to 50 m. The specs below are taken from Seiko's SSA361/SSA363 launch data as documented by Monochrome Watches, which states each value for these references.