Case: Aluminum dual-color bezel Stainless steel 40 x 45 MM   Movement: Miyota automatic mechanical movement Waterproof to 30 metres / 3 ATM -12/+12 sec / day, after casing Bidirectional self-winding via Perpetual rotor winding Approximately 40 hours power reserve   Bracelet: Stainless steel Detachable and adjustable   Style: pea001gmt-sbkblbk Color: Black / Blue Aluminum Bezel / Black Dial  Material: Stainless Steel