Front view
Dial, hands and bezel as delivered.
Case-back view
Case-back engraving and, where fitted, the sapphire display.
Movement
Calibre with its finishing and decoration.
On the wrist
Worn shot for proportion and strap drape.
Greubel Forsey · Tourbillon 24 Secondes
Greubel Forsey Tourbillon 24 Secondes 44 mm Green Ceramic
Reference 89332OR.18
Reference at a glance
- Brand
- Greubel Forsey
- Collection
- Tourbillon 24 Secondes
- Model
- Greubel Forsey Tourbillon 24 Secondes 44 mm Green Ceramic
- Reference number
- 89332OR.18
- Year / era
- 2004 · 2000s — modern production
- Complication
- Perpetual calendar
- Movement
- In-house tourbillon, manual-winding
- Case material
- Ceramic
- Dial type
- Green sunburst
- Strap / bracelet
- Integrated steel bracelet
- Water resistance
- 100 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 44 mm
- Case thickness
- 8.8 mm
- Case material
- Ceramic
- Bezel
- Baguette diamond rainbow
- Crystal
- Box sapphire with AR coating
- Dial
- Green sunburst
- Hands
- Rhodium-plated baton hands with luminous fill
- Indexes
- Applied faceted white-gold indexes
- Bracelet / strap
- Integrated steel bracelet
- Clasp / buckle
- Triple-folding clasp with safety catch
- Water resistance
- 100 m
Movement
- Movement / calibre
- Calibre 67A — In-house tourbillon, manual-winding
- Movement type
- High-frequency automatic
- Frequency
- 25,200 vph (3.5 Hz)
- Power reserve
- 45 hours
- Number of jewels
- 37 jewels
- Complications
- Perpetual calendar
- Functions
- Dive time, running seconds
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 2004 – 2009
- Limited-edition quantity
- Not applicable
- Current market information
- Values have stabilised after the 2022 correction; condition and box-and-papers drive the premium.
Designer
Gérald Genta
Gérald Genta (1931–2011) trained as a goldsmith in Geneva and became the most influential watch designer of the 20th century. Working freelance, he sketched the Audemars Piguet Royal Oak overnight in 1970, followed by the Patek Philippe Nautilus, the IWC Ingenieur SL and the Bulgari Bulgari — defining the integrated-bracelet luxury sports watch as a category.
Historical significance
Greubel Forsey Tourbillon 24 Secondes 44 mm Green Ceramic sits within Greubel Forsey's Tourbillon 24 Secondes line, introduced in 2004. It carries the house codes established since 2004 — ceramic case, green sunburst dial and in-house tourbillon, manual-winding — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
- The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
- The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
The House
Greubel Forsey
Brand facts
- Founding year
- 2004
- Founder
- Robert Greubel & Stephen Forsey
- Headquarters
- Switzerland
- Tier
- Ultra-Luxury & Haute Horlogerie
- Major collections
- Double Balancier, Hand Made 1, GMT, Tourbillon 24 Secondes, Balancier
- Signature technologies
- Proprietary case-hardening and polishing · Anti-magnetic silicon escapement · Hand-applied guilloché dials
- Famous movements
- In-house automatic with 22k gold rotor · In-house automatic micro-rotor · In-house manual-winding, hand-finished · In-house tourbillon, manual-winding
- Notable watches
- Greubel Forsey Double Balancier 40 mm Salmon 18k (2004) · Greubel Forsey Double Balancier 37 mm Blue Sapphire (2004) · Greubel Forsey Double Balancier 41 mm Silvered 18k (2004) · Greubel Forsey Double Balancier 42 mm Black 18k (2004)
Brand history
Greubel Forsey has spent more than 22 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Double Balancier, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Robert Greubel & Stephen Forsey established Greubel Forsey in 2004, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Greubel Forsey calibre produced today.
Historical milestones
2004
Robert Greubel & Stephen Forsey founds Greubel Forsey in Switzerland.
2024
Greubel Forsey continues to produce Double Balancier, Hand Made 1, GMT and other icons in limited numbers.
More Tourbillon 24 Secondes
Greubel Forsey Tourbillon 24 Secondes 41 mm Silvered Grade
Ref. 10298OR.28
Greubel Forsey Tourbillon 24 Secondes 44 mm Skeletonised Platinum
Ref. 69552OR.87
Greubel Forsey Tourbillon 24 Secondes 39 mm Mother-of-pearl 18k
Ref. 48370OR.23
Greubel Forsey Tourbillon 24 Secondes 37 mm Mother-of-pearl Stainless
Ref. 21153ST.32
Greubel Forsey Tourbillon 24 Secondes 42 mm Meteorite Sapphire
Ref. 33394OR.77