Patek Philippe: Ref. 6301P Grande Sonnerie
Patek Philippe’s new Ref. 6301P Grande Sonnerie is the brand’s first wristwatch that “presents the grande sonnerie as the epitome of horological complications in its purest form,” complemented with a petite sonnerie and a minute repeater, a combination long awaited by watch collectors.
The Ref. 6301P Grande Sonnerie has a new 703-part movement, cased in platinum (44.8mm x 12mm) as well as a black dial in grand feu enamel.
To do so, Patek Philippe has developed a new movement as a spin-off of the caliber 300 of the famous Grandmaster Chime. Consisting of 703 parts, the caliber GS 36-750 PS IRM is comparatively compact for the functions it offers (diameter: 37 mm; height: 7.5 mm).
The 6 complications of the new Ref. 6301P Grande Sonnerie:
Grande sonneriePetite sonnerieMinute repeaterMovement power-reserve indicatorStrikework power-reserve indicatorJumping seconds
Cal. GS 36-750 PS IRM
Patek Philippe equipped the caliber GS 36-750 PS IRM with two tandem-connected twin mainspring barrels, one for the going train and the other for the chiming mechanism. This configuration delivers a power reserve of 72 hours for the movement and of 24 hours for the strikework. The two twin mainspring barrels are wound with the crown pushed in and rotated clockwise to wind the going train and counterclockwise to wind the strikework. The four mainsprings feature slip bridles to avoid overtensioning.
“Thanks to the energy stored in the twin mains...
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