Swiss luxury watch maker Pierre DeRoche announces a new addition to its popular TNT Royal Retro line. The new TNT Royal Retro model is equipped with a GMT display adjustable to the nearest half hour not via a corrector, but instead using the crown.
To avoid any loss of precision during adjustments, the GMT hours and minutes hands advance in 30-minute increments to guarantee exact half hours, without the movement stopping. A third indicator appears on the white part of the subdial if it is daytime in the zone of the second time zone; or in the black section if it is night-time.
Mechanical automatic exclusive Dubois Dépraz calibre, 48 jewels
Decorated and engraved oscillating weight
Chamfered and satin-finish four retrograde seconds bridges and central bridge
Hand-fitting affixed by a transversal pin
4retrograde seconds hands on gears, strip-spring return
Hours, minutes seconds with retrograde function in four 10-second sectors
Moving retrograde hand indicator
Date and GMT adjustable in half-hour increments
Titanium container with black PVD treatment, 47.5 mm
Steel bezel, lugs, crown guard and crown
Sapphire crystal front and back with anti-reflective treatment on both sides
Water-resistant to 100 metres (10 bar / 330 ft)
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