Cartier Tank Must Watch - 41 mm x 31 mm Steel Case - Silvered Dial - Interchangeable Black Grained Calfskin Strap - WSTA0040 Graduation caliber 2933 automatic movement with

caliber 2933 automatic movement with 24-hour gmt display

Rolex calibre 2236 automatic movement with centre hour

interchangeable full back and sapphire crystal case back

night blue guilloched dial with powdered gold hour markers

Cartier Tank Must Watch - 41 mm x 31 mm Steel Case - Silvered Dial - Interchangeable Black Grained Calfskin Strap - WSTA0040 Graduation caliber 2933 automatic movement with41 mm x 31 mm steel case, beaded crown set with a synthetic cabochon shaped spinel, silvered flinque dial, caliber 1847 MC automatic movement, interchangeable black grained calfskin strap, interchangeable steel deployant buckle. Water resistant to 3 bar (approx 30 meters 100 feet).