SIHH 2009: Jaeger-LeCoultre Navy Seals GMT Chronograph
January 26, 2009
The Master Compressor Diving Chronograph GMT Navy SEALs.
The Manufacture's engineers justifiably consider reliability and safety to be indispensable requirements for a diving watch. Accordingly, they have made the 1500-piece limited edition titanium watertight to 1000 metres and the 500-piece pink gold version watertight to 300 metres. This watch is a member of the very select circle of timepieces that combine the chronograph function with a second time zone. The new self-winding mechanical movement, Jaeger-LeCoultre's Calibre 757, operates at a frequency of 28,800 vibrations per hour and has a 65-hour power reserve.
The black and white dial is perfectly legible despite the amount of information it provides: hours and minutes in the centre, chronograph function display on the centre second hand, hour counter at 9 o'clock and minute counter at 3 o'clock. The operating indicator takes the form of a disc alternating white and black with white streaks as it rotates. Inspired by the hometime/traveltime principle patented by Jaeger-LeCoultre, the second time zone indicated by a skeletonised hand is supplemented by a day/night indicator appearing in an aperture at 12 o'clock. The crown at 3 o'clock is flanked by two pushpieces that are covered with black rubber and sport the line's iconic compression fins - the pushpieces that operate the chronograph. This highly technical instrument is 46.3 mm in diameter. (Ref. Q1782470 - pink gold, Q1782770 - articulated rubber, Q1782670 - rubber molded)