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. At the cut corners, the shorter baguettes make the custom cutting 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 our three frames, the green bezel creates the strongest contrast with the silver dial, followed by the red and then the blue. The lighting is not identical across the three photographs.

Dial, bracelet and movement

The construction beneath each coloured bezel is consistent across all three versions.

  • 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.

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

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. The bracelet's brushed and polished 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. Available upon request, according to the Gerald Charles technical sheet. (as of Aug 2026)

Specification · shared by every version

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
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

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

Price

Price
Available upon request, according to the Gerald Charles technical sheet. (as of Aug 2026)

Versions

Sources

About this article

Written from Gerald Charles's official product pages for the three Gem-Set references. The LMC Flow photographs show the three executions on the wrist in September 2025. The Crown Journal did not technically test or measure them. The figures are the maison's.

Accountable editor
Jimmy Heneidy
Published
Updated
Photography
LMC Flow