Entirely developed in-house, Calibre 6401 continues Audemars Piguet's tradition of sporty complications while responding to contemporary expectations.
Bringing together technical and aesthetic refinement, it features a patented vertical-clutch system that has been simplified to reduce the number of parts, allowing for smoother activation and enhanced reliability. Its redesigned layout offers optimal legibility, with the hour and minute counters positioned at 3 and 9 o’clock respectively, and the instant-jump date located between 4 and 5 o’clock.
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Royal Oak
Royal Oak
Selfwinding Chronograph "Serena Williams" Limited Edition
Selfwinding Chronograph "Serena Williams" Limited Edition
Ref. 26450CB.OO.1356CB.02
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Serial no.
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Documentation
View Interactive User Manual
Warranty
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Audemars Piguet enriches its long-standing collaboration with Serena Williams by bringing her vision to a dedicated limited edition. This new 38 mm wristwatch is honed from white ceramic and illuminated by a pink-coloured mother-of-pearl dial adding both symbolic depth and striking contrast.
Case
The 38 mm white ceramic case with a matching crown and push-pieces features a titanium caseback, a glareproofed sapphire crystal and caseback. The timepiece is water-resistant to 50 m.
- Size 38 mm
- Thickness 11.1 mm
- Water Resistance 50 m
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Dial
The pink-tinted mother-of-pearl dial is complemented by tone-on-tone counters, 18-carat white gold hands and rhodium-toned 18-carat pink gold hour-markers filled with luminescent material, and a polished inner bezel.
Bracelet
The white ceramic integrated bracelet is fitted with an AP folding clasp and is complemented by an additional pink rubber strap with white ceramic studs and a titanium AP folding clasp.
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Setting
CALIBRE 6401 A HOLISTIC EVOLUTION
UP CLOSE AND IN DETAILS
TIME IS NEVER CRAFTED ALONE
For Serena, every chapter is an opportunity for reinvention. From elite sportswoman to entrepreneur, mother and advocate, she keeps evolving with unwavering passion and commitment. Behind these milestones stands a community of family, mentors and fans who encourage her to break barriers and rewrite expectations.
Case
- Material White ceramic
- Water Resistance 50 m
- Size 38 mm
Dial
The pink-tinted mother-of-pearl dial is complemented by tone-on-tone counters, 18-carat white gold hands and rhodium-toned 18-carat pink gold hour-markers filled with luminescent material, and a polished inner bezel.
Bracelet
The white ceramic integrated bracelet is fitted with an AP folding clasp and is complemented by an additional pink rubber strap with white ceramic studs and a titanium AP folding clasp.
Calibre 6401
- Functions Chronograph, hours, minutes, small seconds and date.
- Number of jewels 44
- Mechanism Selfwinding
- Power reserve 55 h
- Total diameter {{ 27 || localMillimeterNumber}} mm
- Number of parts 350
- Frequency 4 hz {{ 28800 || localVibrationNumber}} vph
- Thickness 5.7 mm
Warranty
Two year warranty
Your watch is guaranteed against manufacturing defects for a period of 2 years subject to our International Sales Warranty.
Five year warranty
Applicable to all AP watches purchased through our authorized network from 1st January 2017 subject to our International Sales Warranty.
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