Roger Dubuis Excalibur Flying Tourbillon Monopusher Chronograph and new Geneva Seal requirements
November 13, 2011
In celebration of the 125th anniversary of the Geneva Seal, Roger Dubuis presents the limited edition Excalibur Flying Tourbillon Monopusher Chronograph.This timepiece will be the first Roger Dubuis timepiece to meet the recently unveiled changes to the Geneva Seal requirements.
Apart from more stringent movement finishing standards, a number of objective quality tests must now be passed in order to earn the Geneva Seal. Previously, the seal did not encompass performance testing, it was strictly about aesthetics. Now, certification of the cased watch is conducted by testing water-resistance, accuracy and functions. For example, the timepiece must now be accurate to within +/- 1 minute or less after seven days on a machine simulating the motions of the wearer. Water-resistance ratings and functions must meet the figures promised by the manufacturer. Another notable change, is a requirement that when casing-up the timepiece, the clamps and braces must be finished and the screws holding them must be polished.
The Excalibur Flying Tourbillon Monopusher Chrono comes in a 45 mm diameter 18k pink gold case with polishing on the top side and brushing on the sides. Hours are marked on the dial with printed Roman numerals. The outer chapter ring displays 0-60, representing chronograph seconds when used in conjunction with the red central hand. A display at 12 o'clock shows the power reserve. At 3 o'clock is a 45-minute chronograph counter.
Powering this timepiece is self-winding manufacture caliber RD580. This exceptional movement features a one minute flying tourbillon, platinum monoblock micro-rotor and single pusher chronograph. (A single pushpiece operates the start, stop and reset functions of the chronograph, as opposed to two buttons.) Every component is hand finished, as required by the Geneva Seal certification standards. A view into the movement is available from the dial side via two circular cut-outs, one at 9 o'clock (tourbillon) and one a 6 o'clock (micro-rotor). A sapphire case back affords a full view of the movement, and the amazing finishing.
Roger Dubuis has been an advocate of strengthening the requirements of the Poinçon de Genève and in doing so, they have helped to increase the perceived and actual value of any movements stamped with the prestigious seal.