42 mm steel case, anodised aluminium bezel ring, hesalite crystal with omega logo in the centre, black step dial, Calibre 3861 manual-winding chronometer movement with chronograph and small seconds. Water resistant to 50 metres (167 feet).
42 mm steel case with anti-magnetic protection, black anodised aluminium bezel ring, scratch-resistant sapphire crystal with anti-reflective treatment inside, white lacquered step dial with applied OMEGA logo and indexes, Omega 3861 manual-winding chronometer movement, approximately 50 hours of power reserve, polished-brushed bracelet. Water resistant to 50 metres (167 feet).
42 mm steel case, anodised aluminium bezel ring, hesalite crystal with omega logo in the centre, black step dial, Calibre 3861 manual-winding chronometer movement with chronograph and small seconds. Water resistant to 50 metres (167 feet).
42 mm steel case, transparent back, anodised aluminium bezel ring, domed scratch-resistant sapphire crystal with anti-reflective treatment inside, black step dial with applied OMEGA logo, Calibre 3861 manual-winding chronometer movement with chronograph and small seconds. Water resistant to 50 metres (167 feet).
42 mm steel case with anti-magnetic protection, black anodised aluminium bezel ring, domed scratch-resistant sapphire crystal with anti-reflective treatment inside, white lacquered step dial with applied OMEGA logo and indexes, Omega 3861 manual-winding chronometer movement, approximately 50 hours of power reserve, integrated black rubber strap with a lunar surface pattern in positive relief on its underside. Water resistant to 50 metres (167 feet).
42 mm steel case with anti-magnetic protection, black anodised aluminium bezel ring, domed scratch-resistant sapphire crystal with anti-reflective treatment inside, white lacquered step dial with applied OMEGA logo and indexes, Omega 3861 manual-winding chronometer movement, approximately 50 hours of power reserve, black micro-perforated leather strap with red and white stitching. Water resistant to 50 metres (167 feet).