Marine Torpilleur Dual TimeReference# 3343-320-3A/1A
- Case: Stainless steel polished & satin finish case / fluted bezel
- Size: 44 mm
- Movement: automatic winding manufacture caliber UN-334
- Function: Hours, minutes, small seconds, Dual Time, large date Silicium escapement wheel, anchor and balance-spring
- Power Reserve: approximately 48 hours
- Water Resistance: 50 m
- Dial: Blue sunray satin-finished Small seconds at 6 o’clock, Dual Time at 9 o’clock, large date at 2 o’clock
- Caseback: sapphire crystal
- Strap/Bracelet: Blue alligator-skin strap Stainless steel folding clasp Compatible with fabric strap with velcro fastening
- Factory Warranty: two years
Marine Torpilleur Dual Time
As business and leisure travel became more commonplace in the 20th century, watchmakers started to design timepieces that could simultaneously display two time zones: local time and home time. In 1994, Ludwig Oechslin invented the GMT± functions for Ulysse Nardin, offering two push-pieces, “+” and “-”, used to instantly change the time zone of the hour hand, while the “reference time” aperture at 9 o’clock continually displays the home time. Then, in 2014, Ulysse Nardin introduced the UN-334, the first manufacture calibre fitted with the GMT± function, in the Dual Time Manufacture timepiece.
The new Marine Torpilleur Dual Time offers the technical advantages of the UN-334 manufacture calibre and the vintage DNA of the Marine Chronometer (fluted bezel, counter and Roman numeral hour-markers). The movement offers hour, minute and small seconds functions at 6 o’clock, and a large date in a double aperture at 2 o’clock, which can be adjusted in both directions. While the “home time” display operates continually over a 24-hour period in an aperture at 9 o’clock, the small hand can be moved forward or backward very easily to the local time using the “+” and “-” push-pieces at 8 o’clock and 10 o’clock. To top off the refined mechanics, the calendar function syncs automatically no matter the direction of the adjustment.
The Marine Torpilleur Dual Time 44 mm in a polished and satin-finished stainless steel case offers a power reserve of 48 hours, water resistance to 50 meters and a sunray satin-finished blue dial. The timepiece is fitted with a blue alligator-skin strap with a steel folding clasp and is also compatible with a fabric strap with a velcro fastening.
Like all of Ulysse Nardin’s manufacture calibres, the UN-334 incorporates silicium technology, with the escapement wheel, anchor and balance-spring all made from this metalloid, which offers non-magnetic, elastic and durable properties to guarantee the utmost accuracy. This avant-garde material – which was first introduced to the watchmaking industry in the early 21st century thanks to Ulysse Nardin’s pioneering efforts – requires almost no lubrication and resists wear. As its production techniques are complicated to implement, they remain the preserve of just a handful of watch manufactures.