Saturday, March 21, 2015

Longines Heritage Diver 1967

Unveiled this year at Baselworld watch fair, the Longines Heritage Diver 1967 draws its inspiration from a diver’s watch produced in 1967. Its graduated bordeaux diving bezel contrasts elegantly with its black opaline dial and silver-coloured counters. This chronograph watch is also equipped with a tachymeter function. An original piece is kept in the Longines museum in Saint-Imier.

Longines has always made chronographs designed to accompany pioneers' exploits. After having explored the earth and the sky in the twenties and thirties, athletes turned to the ocean depths in the fifties in the early days of diving with compressed air. This turning point promoted the development of diver’s watches. The reliable and elegant diver’s watches produced by Longines experienced great success.
Today, Longines is reissuing a diver’s watch dating back to 1967, a copy of which is kept in the Swiss watchmaker's museum in Saint-Imier. The diver’s watches of the time borrowed the pilot watch system, in particular their notched rotating bezel with divisions in minutes. This device makes it possible to calculate the length of the dive. The tachymeter scale of the internal flange is used to calculate the speed of the diver: the chronograph must be triggered at the starting point and stopped once the distance of one kilometre is completed. The hand will indicate the average speed.
With a diameter of 42 mm, The Longines Heritage Diver 1967 case houses a self-winding L688.2 movement. This chronograph features a completely original design, reflecting the model that inspired it. It’s silver-coloured asymmetrical counters stand out against the black opaline dial. The bordeaux graduated bezel and silver-coloured tachymeter scale of this model add elegant touches of colour to the overall piece. In the spirit of diver’s watches, the hands and hour markers are coated in Super-LumiNova® while the back and crown of the piece are screwed to ensure water resistance of up to 30 bar. The watches are fitted with a steel bracelet, black leather or rubber strap. An engraving of a diver adorns the caseback as a reminder of the first divers watches produced by Longines.

Technical details
Model: The Longines Heritage Diver 1967
Reference number: L2.808.4.52.x

Self-winding mechanical movement with column wheel chronograph mechanism
Calibre L688.2 (ETA A08.231)
13¼ lines, 27 jewels, 28,800 vibrations per hour
54 hours of power reserve

Hours, minutes, small seconds at 9 o'clock,date at half past four, tachymeter

Central 60-second hand
30-minute counter at 3 o'clock
12-hour counter at 6 o'clock

Round, Ø 42 mm, steel with bordeaux aluminium bezel graduated from 0 to 60 and 1 to 12
Screw-in case back and crown
Sapphire crystal with several layers of anti-reflective treatment
Water resistance: To 30 bar (300 metres)

Black opaline and silver-coloured, 9 indexes with Super-LumiNova®, inner flange with tachymetric scale
Hands: Rhodium-plated with Super-LumiNova® on the hours and minutes hands

Steel bracelet with double security folding clasp and integrated diving extension
Black alligator strap with diving buckle
Black rubber strap with double security folding clasp and integrated diving extension

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