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.
Jaeger-LeCoultre · Duometre
Jaeger-LeCoultre Duometre 43 mm Skeletonised Sapphire
Reference 66607OR.82
Reference at a glance
- Brand
- Jaeger-LeCoultre
- Collection
- Duometre
- Model
- Jaeger-LeCoultre Duometre 43 mm Skeletonised Sapphire
- Reference number
- 66607OR.82
- Year / era
- 1956 · 1950s — pre-quartz mechanical era
- Complication
- Annual calendar
- Movement
- In-house automatic with 22k gold rotor
- Case material
- Sapphire crystal case
- Dial type
- Skeletonised
- Strap / bracelet
- Alligator leather with folding clasp
- Water resistance
- 200 m
- Limited-edition status
- Limited edition of 500 pieces
Case, dial & bracelet
- Case dimensions
- 43 mm
- Case thickness
- 8.8 mm
- Case material
- Sapphire crystal case
- Bezel
- Emerald-set
- Crystal
- Box sapphire with AR coating
- Dial
- Skeletonised
- Hands
- Mercedes hour hand with Chromalight display
- Indexes
- Printed minute track with applied batons
- Bracelet / strap
- Alligator leather with folding clasp
- Clasp / buckle
- Titanium deployant clasp
- Water resistance
- 200 m
Movement
- Movement / calibre
- Calibre 51E — In-house automatic with 22k gold rotor
- Movement type
- High-frequency automatic
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 65 hours
- Number of jewels
- 33 jewels
- Complications
- Annual calendar
- Functions
- Hours, minutes, seconds, date
- Watchmaker
- The calibre is built in-house and adjusted in five positions before delivery.
Production & market
- Production period
- 1956 – 1969
- Limited-edition quantity
- 500 pieces
- 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
Jaeger-LeCoultre Duometre 43 mm Skeletonised Sapphire sits within Jaeger-LeCoultre's Duometre line, introduced in 1956. It carries the house codes established since 1833 — sapphire crystal case case, skeletonised dial and in-house automatic with 22k gold rotor — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- Early production dials show a slightly different minute track, and collectors pay a premium for them.
- The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
The House
Jaeger-LeCoultre
Brand facts
- Founding year
- 1833
- Founder
- Antoine LeCoultre
- Headquarters
- Switzerland
- Tier
- Ultra-Luxury & Haute Horlogerie
- Major collections
- Reverso, Master Control, Master Ultra Thin, Polaris, Duometre, Rendez-Vous, Atmos
- Signature technologies
- Composite and ceramic case materials · Anti-magnetic silicon escapement · Certified chronometer regulation
- Famous movements
- In-house automatic micro-rotor · In-house tourbillon, manual-winding · In-house automatic with 22k gold rotor · In-house manual-winding, hand-finished
- Notable watches
- Jaeger-LeCoultre Reverso 43 mm Meteorite Stainless (1989) · Jaeger-LeCoultre Reverso 42 mm Black Ceramic (1982) · Jaeger-LeCoultre Reverso 39 mm Ice Quartz (1961) · Jaeger-LeCoultre Reverso 39 mm Blue 18k (1971)
Brand history
Jaeger-LeCoultre has spent more than 193 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Reverso, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Antoine LeCoultre established Jaeger-LeCoultre in 1833, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Jaeger-LeCoultre calibre produced today.
Historical milestones
1833
Antoine LeCoultre founds Jaeger-LeCoultre in Switzerland.
1873
Jaeger-LeCoultre earns its first international recognition for precision timekeeping.
1969
The quartz era forces Jaeger-LeCoultre to redefine mechanical watchmaking.
1990
Jaeger-LeCoultre enters the modern collector market with its signature lines.
2024
Jaeger-LeCoultre continues to produce Reverso, Master Control, Master Ultra Thin and other icons in limited numbers.
More Duometre
Jaeger-LeCoultre Duometre 44 mm Silvered 18k
Ref. 23848OR.20
Jaeger-LeCoultre Duometre 43 mm Slate Sapphire
Ref. 82197OR.22
Jaeger-LeCoultre Duometre 37 mm Skeletonised Quartz
Ref. 66466OR.74
Jaeger-LeCoultre Duometre 41 mm Salmon 18k
Ref. 99828OR.89
Jaeger-LeCoultre Duometre 44 mm Skeletonised Quartz
Ref. 58836OR.47