Published on February 17th, 2015 | by Daniel Sherman Fernandez


Pierre DeRoche TNT Royal Retro GMT ½ Hour

Pierre DeRoche TNT Royal Retro GMT ½ Hour 2

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.

Meanwhile, the TNT Royal Retro signature retrograde seconds hands pursue their fascinating path. To spice up the overall effect, two of the six original hands vanish in the lower section of the dial to provide space for the GMT indicator. The TNT Royal Retro GMT ½ Hour is available in a 201-piece limited series.

Technical details
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)


Alligator leather


About the Author is a service to the public and other website owners. is not responsible for, and expressly disclaims all liability for, damages of any kind arising out of use, reference to, or reliance on any information contained within the site While the information contained within the site is periodically updated, no guarantee is given that the information provided in this website is correct, complete, and up-to-date. is not responsible for the accuracy or content of information contained inside.

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to Top ↑