Roger Dubuis Much More Perpetual Calendar Salmon Sunburst Dial/18K Rose Gold

More about Much More Perpetual Calendar Salmon Sunburst Dial/18K Rose Gold

This is an 18K rose gold Roger Dubuis, Much More Perpetual Calendar M34 5739 5. It includes an alligator leather strap with an 18k rose gold tang buckle, a domed curved scratch resistant sapphire crystal over the dial, and a small circular exhibition sapphire display crystal on the case back. It has a signed pull out winding crown, a corrector on the left-side case band for the perpetual calendar, and there is a brushed exhibition sapphire display case back secured with 8 screws engraved "ROGER DUBUIS – HORLOGER GENEVOIS," and a serial number. The 34mm by 47mm rectangular solid three-body curved case, straight screwed lugs, and curved stepped convex bezel, are polished. It has an orange sunburst dial with large grey Arabic numeral hour markers surrounded by a perimeter black railway-style minute track and fancy blued spade/syringe hour and minute hands. There are twin day and month aperture windows underneath the 12 o'clock position, and there is a small round numbered circular leap year aperture that turns ruby red on a leap year between 2 and 3 o'clock. There are two recessed subsidiary dials with black Arabic numerals including a color moon phase register between 8 and 9 o'clock marked "BULLETIN D'OBSERVATOIRE," and there is a radial date dial with a blued indicator hand between 3 and 4 o'clock. It has a Certified Official Superlative Chronometer (COSC) rating, and it's water resistant to 30 meters/100 feet. It has a 40-hour power reserve at full winding, and the 11.5mm thick case, dial, and movement are all signed. This Roger Dubuis Much More Perpetual Calendar M34 5739 5 has a mechanical automatic self-winding Roger Dubuis caliber RD5739 (a modified Lemania caliber 8815) movement. It's stamped with the hallmark of the quality seal of Geneva, and it's rhodium plated with Cotes de Geneve and oeil-de-perdrix embellishment. It's constructed with 25 jewels, a shock absorber device, and a straight-line lever escapement. It has a monometallic balance that's adjusted to 5 positions, a swan neck micrometer regulator, a 22K gold rotor with a Roger Dubuis medallion, and a self-compensating fine balance spring. The mechanism oscillates at a frequency of 28,800 vph (4Hz). The Roger Dubuis Much More Perpetual Calendar M34 5739 5 was produced in c. 2004 in a limited edition to 28 pieces.

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