polished blue sapphire crystal bezel with 6 H-shaped black-plated titanium screws
Calibre Omega 8800 self-winding co-axial master chronometer movement with date
champagne dial with Roman numerals and diamond set index hour markers
transparent back set with an 18K Sedna gold central Observatory medallion
silk-embossed champagne dial with date at 6 oclock
Breitling Premier B01 Chronograph Watch - 42mm Steel Case - Silver Dial - Black Croco Strap - AB0118221G1P1 Mother polished blue sapphire crystal bezel42. 00 mm stainless steel case, 13. 65 mm thick, sapphire crystal back, non screw locked crown with two gaskets, cambered sapphire crystal with glareproof treatment on both sides, silver dial, Breitling 01 self winding movement, approximately 70 hours of power reserve, black croco strap, folding buckle. Water resistant to 100 m (330 ft).