展开Stainless steel case with a chestnut brown (calfskin) leather strap. Fixed stainless steel bezel with a blue aluminium ring showing tachymeter markings. Blue dial with luminous silver-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 3 o'clock position. B612 eco-drive movement. Scratch resistant mineral crystal. Pull / push crown. Solid case back. Round case shape. Case size: 44 mm. Case thickness: 12.1 mm. Band width: 20 mm. Tang clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, tachymeter, date, hour, minute, second. Additional Info: featuring our eco-drive technology - powered by light, any light. never needs a battery. Casual watch style. Watch label: Japan Movt. Citizen Brycen Eco-Drive Chronograph Mens Watch CA0648-09L.