The B-42 Mars 500 is an exceptionally good looking and well made professional watch that is water resistant to a depth of 200 meters. Dimensionally the 42mm 316L steel (black PVD treated) case is well proportioned without being to imposing. What makes this timepiece so striking is the multi-functional matt black dial with contrasting orange numerals and sub counters. Other distinctive features include a rotating black bezel, tachymeter scale, Incabloc shock absorber and sapphire crystal lens. At the heart of the watch is a Swiss made self-winding Valjoux ETA 7750 mechanical chronograph movement. The calibre comprises 25-jewels and oscillates at a frequency of 28,800 vibrations per hour (4Hz). Specifications: Movement: - Automatic Swiss movement, 11 1/2 ''', 25 jewels - 28.800 semi-vibrations per hour - Fine timing device and Incabloc shock absorber Function: - Hour, minute, center-stop-second, day/date indication - Day indication bilingual English and German Case: - Titanium black PVD, three-parts, 42 mm case diameter - Black turning bezel with 60-minute scaleunidirectional (120divisions)flange with hour-scale 13 to 24 h - Superluminova capsule at Pos. 12h - Sapphire crystal anti-reflective on both sides - Screw-down titanium case back - Water-resistant 200 m / 20 bar Dial/Hands: - Black matte, triangles at pos. 3 h next to the date and day indication illustrating the direction of rotating the crown for quick adjustment, arabic numerals, Indices and hands with superluminova orange, green afterglow in the darkness - Orange second-hand with luminous dot superluminova Attachment: Leather strap black padded, with orange contrast stitching, fitted to the case Special Features: - Limited Edition 2012 pieces, MARS 500 - High-tech materials and sporty design, case back embossed with the emblems of the Russian space Authorities Packaging: Leather box, instruction manual, International warranty card, certificate of limitation