46.00 mm steel case, 14.51 mm thick, transparent sapphire crystal back, non screw-locked crown with two gaskets, rotating bezel with circular slide rule, cambered sapphire crystal with glareproof treatment on both sides, black dial, Breitling 01 (Manufacture) self-winding movement, approximately 70 hrs of power reserve, black croco strap, folding buckle. Water resistant to 3 bars.