greubel_forsey_gmt_balancier_convexe_2025
Greubel Forsey GMT Balancier Convexe (2025)

Greubel Forsey GMT Balancier Convexe 2025
© Greubel Forsey
The New GMT Balancier Convexe (or: GMT Balancier Convexe plus 7 more) is a wristwatch by Greubel Forsey.
This new edition of the 2022 Greubel Forsey GMT Balancier Convexe was presented 2025.
This new creation is a complete reinterpretation of the predecessor, while refining its proportions and mechanical layout.
- The Convexe case, still sculpted in titanium, is now more compact at 42.90 mm at the caseband for improved wearability.
- The movement now contains 496 components, 73 more than its predecessor, attesting to a re-engineering of the calibre to accommodate new displays and improved chronometric performance.
- A new 72-hour power reserve indicator is seamlessly integrated into the dial, bringing added functionality without disrupting the visual harmony.
Reference:
- GMT Balancier Convexe Titanium 2025
Movement:
- Manual winding manufacture movement, 21,600 A/h
- Balance spring with Phillips terminal curve, inclined at a 30° angle
- Two coaxial series-coupled fast-rotating barrels
- 72 jewels
- Olived-domed jewels in gold chatons
- 496 parts
- Power reserve 72 h
Case:
- Three-dimensional, variable geometry-shaped bezel, hand-polished with hand-finished straight graining
- Ø 37.8 mm, H 13.8 mm
- Sapphire crystal curved
- Caseback with transparent curved and high domed sapphire crystal
- Waterproof to 5 atm
Dial:
- Openworked
- Dial side:
- Terrestrial globe in titanium, relief-engraved continents, ocean blue treatment
- Day-and-night UTC indicator in titanium, engraved and lacquered
- GMT indicator in gold
- Amphitheatre hour-ring with engraved and lacquered minute-circle
- Small seconds indicator in gold
- Movement side:
- Synthetic sapphire disc displaying city names surrounded by 2 rings (UTC and summer time) engraved and lacquered, hand matt lapped
- Gold “summer time” plate with limitation number, raised engraving, hand matt lapped
Functions:
- Hours, minutess, red triangles with Super-LumiNova
- Small seconds in polished blued steel, flat black polished head
- Second time zone GMT indicator, red triangle
- Rotating globe with universal time
- 24 time zones universal time
- Summer time, winter time
- 72-hours power reserve on a sector
Bracelet:
- Hand-sewn textured rubber or rubber with text in relief, with titanium folding clasp
- On demand: 3-row metal bracelet in titanium
Limitation:
- 22
greubel_forsey_gmt_balancier_convexe_2025.txt · Last modified: 17.11.2025 13:26 by gerdlothar