The Masterlink’s case has a straight top and a curved bottom. That is the inheritance from the Maestro, the shape Gérald Charles Genta drew for the maison that carries his name, with the “smile” cut into the lower edge at six o’clock. According to the maison, every stone is cut for its place.

The Gem-Set is that bezel done in white gold with sixty baguettes. There are three versions, in blue sapphire, red sapphire or green tsavorite. Ten pieces of each. Case and bracelet are steel.

The blue Masterlink Gem-Set seen at an angle, the white-gold baguette bezel standing above the polished steel case outline, brushed centre links of the bracelet
Photo · LMC FlowAt an angle the white-gold gem-set bezel stands above the polished steel case outline that carries the shape.

Shorter stones at the corners

Looked at from the side, the white-gold bezel with its baguettes stands above the polished steel case. The steel beneath it carries the asymmetric outline.

The stones run straight along the top edge at twelve, turn the cut corners and then follow the curve of the smile at the bottom. In the photographs the corner stones are visibly shorter than those on the straight runs. This is where the custom cutting becomes visible.

The green tsavorite Masterlink Gem-Set worn on the wrist, with its integrated steel bracelet, striped silver dial and green stone indexes visible
Photo · LMC FlowThe tsavorite reference. Thirteen stone indexes on the striped silver dial, and skeletonised baton hands.

In the frames the tsavorites read as the most saturated of the three stones, the blue baguettes the least, and the red sits between them. This is an observation from the photographs, not a gemmological claim.

Dial, bracelet and movement

  • Dial: a silver, double-layered construction, with a vertical sunburst base, applied stripes and skeletonised baton hands.
  • Indexes: thirteen stones in the same colour as the bezel.
  • Bracelet: steel, with brushed centre links and polished outer links.
  • Clasp: a concealed butterfly clasp, released by push-buttons in the last links.
The red sapphire Masterlink Gem-Set on a wrist, seen from the crown side
Photo · LMC FlowThe red reference, from the crown side. The screw-down crown keeps its pyramid shape and Clous de Paris grip on a case 7.99 mm thick.

Gerald Charles describes fitting a screw-down crown into a case this thin as a particular problem. Through the open caseback, the GCA1000’s bridges carry vertical Côtes de Genève that continue the dial’s stripes.

The blue Masterlink Gem-Set seen from the crown side, showing the raised white-gold bezel above the steel case and the brushed and polished bracelet
Photo · LMC FlowFrom the crown side, the gem-set bezel appears as a second layer above the steel case; brushed and polished bracelet surfaces change with the light.

Gerald Charles places the Masterlink in the line of the Sarawak, a single piece Genta designed in 2007 for the royal family of Sarawak. Its pavé case and bracelet combined diamonds with baguette rubies. The maison describes the Gem-Set as the first gem-set Masterlink, carrying forward the asymmetric integrated bracelet and the gem-setting.

Price and availability

Production. Each reference is described on its own official page and in the maison's release of 4 September 2025 as a limited edition of 10 pieces.

Price. Not published.

The technical sheet gives the retail price as “Upon request”.

Specification

Case

Shape
square-based asymmetric Maestro case, "smile" at 6 o'clock
Size
38.00 × 38.00 mm
Height
7.99 mm
Material
316L stainless steel, polished and satin-brushed; white gold bezel
Bezel
white gold, set with 60 custom-cut baguette blue sapphires
Crystal
sapphire
Caseback
see-through
Crown
screw-down, Clous de Paris motif, pyramid shape
Water Resistance
10 ATM / 100 m
Components
31

Movement

Calibre
GCA1000
Type
self-winding manufacture movement with offset micro-rotor, developed between Geneva and Fleurier
Functions
hours, minutes
Power Reserve
50 hours
Frequency
3 Hz
Components
176
Jewels
29
Dimensions
30.59 mm diameter, 2.67 mm total thickness
Notable
Incabloc shock protection, hacking seconds, unidirectional micro-rotor; vertical Côtes de Genève on the bridges continue the dial stripes; micro-rotor sandblasted at the base with sunburst brushing on top

Details

Dial
silver, double-layered, vertical sunburst finish with applied vertical stripes; skeletonised baton hands; 13 hour indexes set with blue sapphires
Straps
integrated asymmetric steel bracelet developed in-house, hidden link construction, concealed butterfly clasp with hexagonal 'GC' plate and hidden push-buttons; micro-link for fine adjustment

Sources

About this article

Written from Gerald Charles's official product pages for the three Gem-Set references. The Crown Journal did not independently test these watches; the figures are the maison's. The photographs are ours, taken in September 2025.

Accountable editor
Jimmy Jonevret
Published
Photography
LMC Flow