Patek Philippe creates the first Grandmaster Chime in steel

For the eighth edition of the Only Watch charity auction, Patek Philippe will donate a new and exceptionally unique timepiece: the first and only Grandmaster Chime in steel – a very rare metal in the Genevan manufacture’s collection and particularly uncommon for a grand complication.

Ref. 6300A-010

Caliber 300 GS AL 36-750 QIS FUS IRM. Manually wound mechanical movement. Strike work isolator indicator. Second-time zone with day/night indicator. Day, date (on both dials), month, leap-year cycle by hands. Four-digit year display in an aperture. 24-hour and minute subdial. Crown position indication (R,A,H).

Stainless steel reversible case with guilloched hobnail pattern, protected against humidity and dust (not water-resistant). The time side dial in rose gold, with gold, applied Breguet numerals. Calendar side in black ebony. 18K solid gold dial plates. Shiny black alligator leather strap with square scales, hand-stitched. Fold-over clasp. Case diameter: 47.7 mm. Thickness: 16.07 mm.

Launched in 2014 on the occasion of the company’s 175th anniversary, the Grandmaster Chime became part of the manufacture’s regular collection in a white-gold version in 2016. The most complex Patek Philippe wristwatch features 20 complications, including five acoustic functions, two of which are patented global premières: an alarm that strikes the preprogrammed alarm time and a date repeater that sounds the date on demand. The double-face case with the guilloched hobnail pattern is endowed with a patented reversing mechanism.

Apart from its steel case, the Ref. 6300A-010Grandmaster Chime, created explicitly for Only Watch 2019, stands out with its rose-gold and ebony-black dials as well as the inscription “The Only One” on the subsidiary alarm time dial at 12 o’clock, a further hallmark of its exclusivity.

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Credit to: Nancy Hass

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