
Watch
Masterlink Perpetual Calendar Sapphire Dial
- ML11.0-TNBR-TNSB-SP31PS-TNDP
"The watch is now available for pre-order. Delivery after 2 months"
The Masterlink Perpetual Calendar with sapphire dial reveals the full poetry of its movement, offering a captivating open-worked view of its mechanical architecture. Engineered entirely in-house, its groundbreaking asymmetrical perpetual calendar combines innovation, precision, and exceptional readability. A transparent expression of haute horlogerie, where design, engineering, and craftsmanship exist in perfect harmony.
Open worked sapphire dial: shaped transparent construction revealing the entire Maestro movement.
An in-house developed Grade 5 titanium bracelet with 151 components, featuring Darkblast®, polished and brushed finishes. ErgonTeq® ergonomic design, micro-adjustment links, and a concealed deployant clasp.
Multi-level finishing on the front of the movement: Côtes de Genève on the 1st level, perlage on the 2nd, and hand-executed anglage on the bridges.
On the back: straight Geneva stripes represent the city grid of Geneva, a denser line symbolizes Rue du Mont-Blanc, and curved Geneva stripes evoke the lake.
Technical
specifications
- CaliberIn-House, ultra-thin, Swiss Manufacture Caliber GCA11000. A Maestro-shaped movement with an offset micro-rotor and three-counter display, elegantly integrating a highly legible grand date.
- FunctionsHours, minutes, day, date, month, leap year, moonphase
- Power reserve50 hours
- Water resistance10 ATM/100 metres
A Watchmaking First
Asymmetrical Perpetual Calendar, Reimagined
The Masterlink Perpetual Calendar introduces the world’s first in-house asymmetrical automatic perpetual calendar with a three-counter display, powered by the ultra-thin GCA11000 calibre with micro-rotor. Engineered for over 100 years of precision, it combines day, date, month, leap year, and a highly advanced moonphase within a 100m water-resistant Grade 5 titanium case, embodying Gerald Charles’ “No Compromise” philosophy.
Number of components
306 pieces
Frequency
3 Hz
Jewels
29 rubies Incabloc shock protection

Mechanical transparency
Open-Worked Sapphire Dial
The sapphire dial version reveals the full complexity of the shaped movement beneath, with a transparent construction. Enhanced by smoked zones for clarity, it balances technical visibility with legibility, offering a captivating view of haute horlogerie craftsmanship finished with perlage, anglage, and Geneva stripes.

Sculpted Titanium Case
Complex geometry, ultimate performance
The 40mm asymmetrical case in Grade 5 titanium combines architectural design with high-performance engineering, enhanced by Darkblast®, brushed, and polished finishes. Despite its complex form, it achieves 100m water resistance.
Dimension
Width: 40.00mm Lenght: 40.00mm Thickness: 10mm
Components
33 Pieces
Material
Grade 5 Titanium case
Finishing
3 finishes: Darkblast®, brushed and polished
Crown
Screw-down crown with Clous de Paris motif and pyramid shape
Construction
Carved with CNC numeric control machinery. Asymmetric polygon with smooth edges
Case Back
See-through

Ergonomic Titanium Architecture
Design, comfort, and innovation in harmony
Crafted in Grade 5 titanium, the 40mm case and integrated bracelet feature Darkblast®, brushed, and polished finishes, combining durability with refined tactility. The watch ensures exceptional comfort, while the ultra-thin profile, micro-adjustable bracelet, and intuitive correctors deliver a seamless and versatile wearing experience.
Material
Grade 5 titanium, TITARON® a proprietary hardening technique engineered for superior scratch resistance
Finishing
Three finishes: Darkblast®, vertical brushed and polished
Clasp
Folding clasp with GC engraving, deployante with hidden pushers
Micro-link
Micro-link available for finer adjustment of bracelet

The last integrated asymmetric bracelet designed by Mr. Genta
The Sarawak: Masterlink's origins
In 2007, Gérald Charles Genta designed the Maison's first integrated bracelet watch as an exclusive piece for the Royal family of Sarawak, a Malaysian state. The predecessor of the Masterlink featured a full pavé set bracelet and case in round diamonds and baguette rubies, carrying the DNA of high-end gem setting which now is signature to the Maison. Exclusively developed in-house by Gerald Charles.

Mapping out the story
The map of Geneva, written in mechanics
The mainplate and bridges reinterpret Geneva, the Maison’s home city, through their architecture and finishing. Straight and curved Geneva stripes evoke the city’s roads and Lake Léman, while a slender opening recalls the Rhône. A black ruby marks the Atelier at Rue du Mont-Blanc 3, and the balance wheel stands where the Jet d’Eau rises.

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