Grey titanium case with a grey titanium bracelet. Fixed grey titanium with a black ion-plated showing tachymeter bezel. Black carbon fiber dial with luminous hands and index hour markers. Minute and 24 hour (GMT) markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display between 4 and 5 o'clock position. Chronograph - sub-dials displaying: three - 60 seconds, 30 minutes and 12 hours. Omega Calibre 3603 automatic movement with a 52-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Solid case back. Round case shape, case size: 44.25 mm, case thickness: 15.9 mm. Band width: 20 mm. Deployment clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, GMT, second time zone, date, hour, minute, second, chronometer, tachymeter. Additional Info: limited solar impulse edition. Casual watch style. Watch label: Swiss Made. Item Variations: 321 90 44 52 01 001, 321-90-44-52-01-001, 321/90/44/52/01/001, 32190445201001. Omega Speedmaster HB-SIA Chronograph Automatic Chronometer Mens Watch 321.90.44.52.01.001.