Omega Style No: 310.30.40.50.06.001 Omega Speedmaster Anniversary Series - 39.7 mm Steel Case - Grey-Blue Dial - Flat Links Bracelet

39.7 mm steel case with anti-magnetic protection, bezel ring is presented in black aluminium and includes the legendary tachymeter scale with an emblematic “Dot Over Ninety”, hesalite-like form scratch-resistant sapphire crystal with anti-reflective treatment inside, grey-blue dial, Omega 3861 manual-winding chronometer movement, approximately 50 hours of power reserve, flat links bracelet with OMEGA’s patented comfort release adjustment system. Water resistant to 50 metres (167 feet).