Marine GMT 5857

BREGUET MARINE GMT 5857
 
This year, Breguet’s Marine collection gains an unprecedented timezone model in a steel or rose gold case. The timezone of this Marine GMT watch, a function that frequent travellers find most useful, is shown by the two central hands. A chapter ring of hours, off-centre at 6 o'clock, shows the reference time. An aperture for the dates in the reference timezone makes the watch even more practical. The distinguishing features of the Marine GMT 5857 include the tough and action-ready character emanating from its 42 mm diameter case, its welded lugs, rubber strap and guards protecting the crown. In contrast, the dial is engine-turned in a wave pattern on silvered gold for the steel version and on blackened rhodium for the model in rose gold, the sophistication of which is underlined by finely interlaced circles. The hours chapt ers are also differentiated by Roman numerals for the reference time and Arabic numerals for the timezone. The sapphire crystal caseback reveals the selfwinding calibre 517F movement of 11½ lignes with a power reserve of 72 hours. The use of silicon for the inverted in-line lever escapement and the flat balance-spring ensures a stable rate from a balance vibrating 28,800 times an hour.