

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.
F.P. Journe · Resonance
F.P. Journe Resonance 42 mm Slate Sapphire
Reference 64687OR.52
Reference at a glance
- Brand
- F.P. Journe
- Collection
- Resonance
- Model
- F.P. Journe Resonance 42 mm Slate Sapphire
- Reference number
- 64687OR.52
- Year / era
- 2003 · 2000s — modern production
- Complication
- Flyback chronograph
- Movement
- In-house automatic micro-rotor
- Case material
- Sapphire crystal case
- Dial type
- Slate grey
- Strap / bracelet
- Rubber strap with titanium clasp
- Water resistance
- 300 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 42 mm
- Case thickness
- 8.1 mm
- Case material
- Sapphire crystal case
- Bezel
- Fixed brushed titanium
- Crystal
- Flat sapphire with Cyclops lens
- Dial
- Slate grey
- Hands
- Blued steel Breguet-style hands
- Indexes
- Diamond-set hour markers
- Bracelet / strap
- Rubber strap with titanium clasp
- Clasp / buckle
- Folding clasp in matching case metal
- Water resistance
- 300 m
Movement
- Movement / calibre
- Calibre 75B — In-house automatic micro-rotor
- Movement type
- Automatic, self-winding
- Frequency
- 21,600 vph (3 Hz)
- Power reserve
- 65 hours
- Number of jewels
- 40 jewels
- Complications
- Flyback chronograph
- Functions
- Hours, minutes, small seconds
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 2003 – 2009
- Limited-edition quantity
- Not applicable
- Current market information
- Thin secondary-market supply — pricing is set piece by piece at auction.
Designer
Jörg Hysek
Jörg Hysek left Rolex and Seiko's European studios to build a design practice in Geneva, giving houses such as Vacheron Constantin, Breguet, Seiko and TAG Heuer their sculptural, architecture-led cases before founding his own brand, HD3.
Historical significance
F.P. Journe Resonance 42 mm Slate Sapphire sits within F.P. Journe's Resonance line, introduced in 2003. It carries the house codes established since 1999 — sapphire crystal case case, slate grey dial and in-house automatic micro-rotor — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
- Early production dials show a slightly different minute track, and collectors pay a premium for them.
- The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
The House
F.P. Journe
Brand facts
- Founding year
- 1999
- Founder
- François-Paul Journe
- Headquarters
- Switzerland
- Tier
- Ultra-Luxury & Haute Horlogerie
- Major collections
- Chronometre Bleu, Tourbillon Souverain, Octa, Resonance, Elegante, Linesport
- Signature technologies
- Proprietary case-hardening and polishing · Hand-applied guilloché dials · Composite and ceramic case materials
- Famous movements
- In-house automatic with 22k gold rotor · In-house tourbillon, manual-winding · In-house manual-winding, hand-finished · In-house automatic micro-rotor
- Notable watches
- F.P. Journe Chronometre Bleu 37 mm Silvered Sapphire (1999) · F.P. Journe Chronometre Bleu 38 mm Black 18k (1999) · F.P. Journe Chronometre Bleu 44 mm Ice Platinum (1999) · F.P. Journe Chronometre Bleu 43 mm Skeletonised Sapphire (1999)
Brand history
F.P. Journe has spent more than 27 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Chronometre Bleu, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
François-Paul Journe established F.P. Journe in 1999, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every F.P. Journe calibre produced today.
Historical milestones
1999
François-Paul Journe founds F.P. Journe in Switzerland.
2024
F.P. Journe continues to produce Chronometre Bleu, Tourbillon Souverain, Octa and other icons in limited numbers.
