- Year
- 2026
- Condition
- Unworn
- Set
- Box and papers
- Size
- 45.50 mm
Set and condition
Complete set
This Tourbillon 24 Secondes Architecture is accompanied by its original presentation box, warranty card and supporting documentation. The watch and included items are inspected by an expert watchmaker before sale. Additional photographs and video of this piece are available on request.
Original presentation box
Original presentation box and packaging.
Original papers
Warranty card and supporting documentation.
Inspected prior to sale
Reviewed for condition, completeness and functionality. Additional details and photographs are available on request.
Condition photography
Additional close-up images of specific areas are available before purchase.
Overview
The movement, seen from every side
The Greubel Forsey Tourbillon 24 Secondes Architecture, from the Tourbillon collection, in titanium, 45.5 mm and 16.8 mm high, water-resistant to 50 m. A convex conical case with a sapphire ring round the caseband, showing the 354-component movement and its 24-second tourbillon from every side; 90 hours of reserve; 11 timepieces.
The Tourbillon 24 Secondes Architecture is built so that the calibre can be seen from above, below and all the way round the caseband: a convex conical case with a sapphire ring around its whole perimeter. The brand says no earlier Greubel Forsey was built this way, and that it has used lateral sapphire apertures since 2007 but never at this scale. Titanium, 45.5 mm, 11 pieces, regulated by the 24-second tourbillon.
The 354 components are set asymmetrically on several three-dimensional planes and seen through a large opening on the dial side; the brand's account is that each part's position was decided as much by how it reads as by what it does — dense, but not crowded. Around the aperture, engraved in relief on the case, are the nine principles the brand set for the watch: Architecture, Harmonie, Innovation, Technique, Bienfacture, Passion, Science, Exclusivité, Créativité. From the front the case reads as round; from any other angle the conical profile and the sapphire band show. The tourbillon turns once in 24 seconds, and the reserve is 90 hours.
For collectors
90 hours is the longest reserve among the brand's current watches, and 11 the smallest run among those made as an edition; the two Hand Made pieces and the Grande Sonnerie are made by the year rather than by the run.
Key details
Design and engineering
- Convex conical caseCircular from the dial side, conical from any other angle, with a sapphire crystal ring around the entire caseband so the movement is seen from the side as well as the faces.
- Multi-plane movement354 components on asymmetric three-dimensional planes, each placed by technical need and visual logic together, under a large dial-side aperture.
- Nine principlesEngraved in relief around the aperture: Architecture, Harmonie, Innovation, Technique, Bienfacture, Passion, Science, Exclusivité, Créativité.
- Tourbillon 24 SecondesThe cage completes a turn in 24 seconds, the brand's fast tourbillon, with the power reserve indicated.
- CaseTitanium, 45.5 mm and 16.8 mm high, water-resistant to 50 m.
Movement
- Tourbillon 24 Secondes, one rotation in 24 seconds; hours, minutes, small seconds, power reserve
- 354 components on multiple three-dimensional planes
- 21,600 vibrations per hour
- Power reserve 90 hours
The reference
Technical specifications
| Collection | Tourbillon |
|---|---|
| Functions | Tourbillon 24 Secondes, hours and minutes, small seconds, 24-seconds tourbillon rotation, power-reserve |
| Case dimensions | 45.50 mm |
| Case thickness | 16.80 mm |
| Case material | Titanium |
| Water resistance | 5 atm - 50 m - 164 ft |
| Power reserve | 90 hours |
| Frequency | 21,600 vibrations/hour |
| Limitation | 11 timepieces |
| Reference | Not published by the brand — sourced by model and execution |
Buying with HYPA
Purchase with confidence
- Original warranty card included, dated 2026
- Free insured delivery within Australia and Hong Kong · elsewhere quoted
- Payment by bank transfer
- Registered Australian dealerHYPA International Pty Ltd · Registered Victorian second-hand dealer, Registration No. SHD-0018017.
- Direct specialist supportSpeak with the HYPA team before, during and after the purchase.
- Rated 5.0 on Google · 11 reviewsFrom clients of HYPA International on Google. Read the reviews
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