This 40mm Roger Dubuis Hommage Perpetual Calendar in 18K white gold features a striking brushed blue dial and represents a rare peak from the master’s early independent era. Limited to just 28 examples, it bridges classic aesthetics with imaginative modern touches, such as a wide polished bezel, applied Breguet numerals .
The dial relies on inline Day-Month apertures reminiscent of the vintage Rolex “Padellone,” paired with separate date and moonphase registers. Flanking the moonphase is the subtle inscription “bulletin d’observatoire,” signaling that each movement underwent rigorous accuracy testing at the Besançon Observatory—a standard far more exacting than COSC.
Inside beats the automatic Calibre 5739, built on a Longines L990 ébauche. Every movement earned the prestigious Geneva Seal for finishing standards and was personally regulated by Roger Dubuis himself. Showing only light hairline scratches on its polished bezel and an even patina, the watch is presented on a tailored blue strap that perfectly complements its rare, collectible dial.
