Sirena Launches Its Largest Yacht Yet Ahead of Monaco Debut
3 min
The first Sirena 42M has entered the water, combining Luca Vallebona’s exterior design, Van Oossanen naval architecture and interiors by Hot Lab.
For a yacht builder, launching a new flagship is more than adding metres. It requires different engineering, supplier coordination, owner expectations and operational thinking. Sirena Yachts has now crossed that threshold with the first 42-metre model in its larger superyacht range.
The Sirena 42M is the Turkish yard’s largest yacht to date and the first completed model from a family also conceived at 35 and 50 metres. Construction began in late 2023, with hull and superstructure joined in February 2025. The first yacht was sold through Sirena’s in-house team and is scheduled to appear at the Monaco Yacht Show.
Exterior design is by Luca Vallebona, with naval architecture by Van Oossanen Naval Architects and detailed engineering by Eureka. The combination places efficient hull development beneath an exterior intended to deliver generous usable deck areas rather than relying on size alone.
Inside, Hot Lab, part of The Viken Group, has developed an organic design language. That description typically signals rounded forms, natural materials and fewer hard visual transitions between rooms. The effectiveness will be easier to judge when completed photography and onboard access replace renders, but the approach suits the current movement towards calmer, residential yacht interiors.
At 42 metres, owner experience becomes inseparable from crew operation. Buyers should examine crew circulation, galley logistics, storage, engine-room access, tender handling and noise isolation alongside the guest spaces. A successful yacht must make hospitality appear effortless because the technical and service plan is working invisibly beneath it.
The Monaco debut will be important for Sirena. It places the 42M in front of brokers, owners and advisers comparing it with established European yards in the same bracket. Build quality, systems access and finish consistency will matter as much as the silhouette.
The first launch also creates a reference point for the wider range. If the 42M performs well in use, it can give credibility to both smaller and larger Sirena superyacht proposals. A flagship’s job is therefore not simply to impress its owner; it must demonstrate what the yard can reliably deliver next.
Fact box
– Model: Sirena 42M
– Length: 42 metres
– Status: First hull launched; Monaco Yacht Show debut planned
– Exterior: Luca Vallebona
– Naval architecture: Van Oossanen Naval Architects
– Engineering: Eureka
– Interiors: Hot Lab, The Viken Group
– Significance: Largest Sirena yacht to date
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Unveiled around Geneva Watch Days, the Laureato Fifty Tourbillon combines a compact integrated-bracelet case with Girard-Perregaux’s new GP8410 calibre.
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The return to more restrained case sizes has reached one of high watchmaking’s most theatrical complications.
Girard-Perregaux has unveiled the Laureato Fifty Tourbillon 39mm, extending the anniversary-focused Laureato Fifty family with a new movement and an open tourbillon display that avoids the oversized proportions often associated with complicated sports watches.
The 39mm case is central to the proposition. It preserves the Laureato’s integrated-bracelet architecture and recognisable octagonal bezel while making the complication feel wearable rather than monumental.
At the lower portion of the dial sits the tourbillon cage, turning the regulating organ into the watch’s visual centre. The new Calibre GP8410 has been developed to support that layout and represents the most technically ambitious movement yet used in the Laureato Fifty line.
Two principal treatments have been shown: a blue execution and a warmer version with an 18-carat rose-gold tone. In both, the appeal comes from contrast between the disciplined geometry of the Laureato and the constant motion of the tourbillon.
Girard-Perregaux has deep historical credibility in the complication, particularly through its Tourbillon with Three Gold Bridges. The Laureato Fifty Tourbillon translates that expertise into a modern sports-watch language rather than recreating a historical pocket-watch architecture.
For collectors, the decisive details will be production numbers, Australian allocation, movement finishing, power reserve, water resistance and price. Those should be confirmed from the full manufacture release before publication.
What is already clear is the strategic intent. Instead of making the Laureato more aggressive, Girard-Perregaux has added complexity while retaining a measured diameter. That makes the watch feel aligned with the current market—and potentially more enduring than a larger anniversary statement.
Fact box
– Model: Girard-Perregaux Laureato Fifty Tourbillon
– Case: 39mm
– Movement: New GP8410 tourbillon calibre
– Versions: Blue and rose-gold-toned executions
– Launch context: Geneva Watch Days 2026
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