LONGINES ? HERITAGE Column-Wheel Single Push-Piece Chronograph The Longines Column-Wheel Single Push-Piece Chronograph ? A reissue of a sleekly designed Single Push-Piece Chronograph Reference numbers: L2.800.4.53.0 The Longines Column-Wheel Single Push-Piece Chronograph?s black lacker dial bears white contrasting Arabic numerals and a tachymetric scale. Its rhodium-plated hands stand out, ensuring perfect reading. The transparent steel case back with a diameter of 41 mm reveals the minutiae of Longines? signature watch movement. The blued finish column wheel shows its perfectly symmetrical profile within this exclusive calibre. A single push-piece is used to control the chronograph?s functions, reinforcing this model?s sleek design. Reference numbers: L2.800.4.23.2 The Longines Column-Wheel Single Push-Piece Chronograph?s white lacker dial bears black contrasting Arabic numerals and a tachymetric scale. Its blued finish steel hands stand out, ensuring perfect reading. The transparent steel case back with a diameter of 41 mm reveals the minutiae of Longines? signature watch movement. The blued finish column wheel shows its perfectly symmetrical profile within this exclusive calibre. A single push-piece is used to control the chronograph?s functions, reinforcing this model?s sleek design. Movement: ? Self-winding mechanical movement with single push-piece and column-wheel chronograph mechanism ? Calibre L788.2 (ETA A08.L11) ? 13? lines ? 27 jewels ? 28?800 vibrations per hour ? Power reserve: 54 hours Functions: ? Hours, minutes, small seconds at 9 o'clock ? Date at 6 o'clock ? Tachymetric scale Chronograph: ? Centre sweep seconds hand ? Dragging 30-minute counter at 3 o?clock Case: ? Steel ? 41 mm ? Round ? Single push-piece integrated into the crown ? Transparent sapphire case back ? Sapphire crystal with several layers of anti-reflective treatment ? Water-resistant To 3 bar (30 meters) Dial: ? White lacquer, 9 black Arabic numerals ? Black tachymetric scale ? Matte black, 9 white Arabic numerals ? White tachymetric scale Hands: Rhodium-plated or blued steel Strap: ? Brown or black alligator with buckle zdroj - http://watchesseven.blogspot.cz/2015/09/longines-heritage-column-wheel-single.html