Omega Aqua Terra 150M Co-Axial Master Chronometer Watch - 41 mm Steel Case - Silvery Dial - Brown Leather Strap - 220.12.41.21.02.001 41.5 18K Everose gold screw-down crown

18K Everose gold screw-down crown with twinlock double waterproofness system

silver dial with sunray finish and lacquer

29 mm steel and yellow gold case with anti-magnetic protection

approximately 48 months of power reserve

24 mm brushed 18K yellow gold case

Omega Aqua Terra 150M Co-Axial Master Chronometer Watch - 41 mm Steel Case - Silvery Dial - Brown Leather Strap - 220.12.41.21.02.001 41.5 18K Everose gold screw-down crown41 mm stainless steel case, transparent back, screw in crown, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, silvery dial with a horizontal teak pattern, caliber 8900 self winding Co Axial master chronometer movement with date function, approximately 60 hours of power reserve, brown leather strap. Water resistant to 150 m (500 ft).