It is understood that
for each variant in the series, there were
no more than 28 made. Each was chronometer-graded,
with a certificate from the Besançon Observatory. One of the earlier pieces created by the legendary watchmaker, after establishing his own brand in 1995, examples such as this
H40 are becoming increasingly collectible.
The design is that of a two-register chronograph, with an
ultramarine blue lacquer dial and gilt tachymetric scale. The dial features a perlage pattern on its base layer, with gilt printing and subsidiary dials forming an excellent contrast against the deep blue dial. Based on the angle and intensity of the light, it displays a range of different shades of blue; the anti-reflective coating on the sapphire glass further emphasising these details. The feuilles hands are rose-gold, matching the applied Arabic numerals.
The case is very distinct with its polished, stepped concave bezel and polished lugs. The three-piece construction gives the watch a bold presence on the wrist, measuring 40mm in diameter. Over time, the right side of the case has developed a rich patina, through oxidisation.
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RD 56 (based on the
Lemania 2310 - much like the
Patek Philippe 5070), the watch bears the
Seal of Geneva and was
regulated by Roger Dubuis himself. The complexity of the movement is revealed through an engraved sapphire case-back, featuring a 21 jewel, straight-line lever escapement, a monometallic balance adjusted to 5 positions, a self-compensating Breguet spring and swan-neck micrometer regulator.
Viewings can be arranged in Central London by appointment.
