Automatic Tudor Calibre MT5402 movement. COSC certified chronometer. 70-hour power reserve. Analog dial with index and Arabic numerals hour markers. Silver-tone stainless steel case with fixed satin finish bezel. Green, red and beige striped fabric strap. Screw-down crown. Round shape measuring 39 mm. Buckle clasp closure. Sapphire crystal resistant to scratches. Water resistant up to 100 meters / 330 feet.
![[Model Number]: Tudor Black Bay 31 Automatic Chronometer Blue Dial Ladies Watch](https://cdn.lepodium.net/images/000/070/70015-2.jpg)
