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 meters and the 500-piece pink gold version watertight to 300 meters.

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/travel time principle patented by Jaeger-LeCoultre, the second time zone indicated by a skeletonized 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)

Posted by:Jason Pitsch

Jason is the founder of Professional Watches and specializes in writing, product photography, and digital marketing.