Seiko 5 Sport GMT R15462MBB115 and has a sapphire insert

and has a sapphire insert with a 24-hour scale

The strap is black alligator and the buckle is an 18K rose gold tang style buckle

Manufacture Calibre MT5201 (COSC)Self-winding mechanical movement with bidirectional rotor systemIntegrated construction

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Seiko 5 Sport GMT R15462MBB115 and has a sapphire insertRoyal Jewelers is an authorized Seiko dealer in the Boston area and offers the Seiko 5 Sport GMT with Seiko's 3 year warranty. Seiko 5 Sports SKX Sports Style GMT SeriesDesign of the case and bracelet inspired by one of Seiko's best loved sports watches, known to enthusiasts as the Seiko SKX series Automatic GMT with manual winding capability21,600 vibrations per hourPower reserve: approximately 41 hours24 jewelsDark gray and light gray 24 hour GMT