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 · Master Control
Jaeger-LeCoultre Master Control 44 mm Mother-of-pearl Quartz
Reference 39339OR.43
Reference at a glance
- Brand
- Jaeger-LeCoultre
- Collection
- Master Control
- Model
- Jaeger-LeCoultre Master Control 44 mm Mother-of-pearl Quartz
- Reference number
- 39339OR.43
- Year / era
- 1964 · 1960s — pre-quartz mechanical era
- Complication
- Time only
- Movement
- In-house tourbillon, manual-winding
- Case material
- Quartz TPT
- Dial type
- Mother-of-pearl
- Strap / bracelet
- Alligator leather with folding clasp
- Water resistance
- 300 m
- Limited-edition status
- Limited edition of 88 pieces
Case, dial & bracelet
- Case dimensions
- 44 mm
- Case thickness
- 10.2 mm
- Case material
- Quartz TPT
- Bezel
- Fixed brushed titanium
- Crystal
- Anti-reflective sapphire, double-domed
- Dial
- Mother-of-pearl
- Hands
- Blued steel Breguet-style hands
- Indexes
- Diamond-set hour markers
- Bracelet / strap
- Alligator leather with folding clasp
- Clasp / buckle
- Folding clasp in matching case metal
- Water resistance
- 300 m
Movement
- Movement / calibre
- Calibre 35A — In-house tourbillon, manual-winding
- Movement type
- Automatic, self-winding
- Frequency
- 36,000 vph (5 Hz)
- Power reserve
- 5 days
- Number of jewels
- 37 jewels
- Complications
- Time only
- Functions
- Flying tourbillon, power reserve
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 1964 – 1971
- Limited-edition quantity
- 88 pieces
- Current market information
- Values have stabilised after the 2022 correction; condition and box-and-papers drive the premium.
Designer
Emmanuel Gueit
Emmanuel Gueit came from a family of Geneva jewellers and was barely into his twenties when he drew the oversized Royal Oak Offshore in 1993 — a watch the house's traditionalists resisted and collectors turned into an icon.
Historical significance
Jaeger-LeCoultre Master Control 44 mm Mother-of-pearl Quartz sits within Jaeger-LeCoultre's Master Control line, introduced in 1964. It carries the house codes established since 1833 — quartz tpt case, mother-of-pearl 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 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 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 Master Control
Jaeger-LeCoultre Master Control 42 mm Black Stainless
Ref. 86164ST.90
Jaeger-LeCoultre Master Control 44 mm Ice Ceramic
Ref. 90781OR.18
Jaeger-LeCoultre Master Control 36 mm Slate Ceramic
Ref. 34945OR.84
Jaeger-LeCoultre Master Control 37 mm Salmon Platinum
Ref. 58058OR.88
Jaeger-LeCoultre Master Control 38 mm Salmon Platinum
Ref. 35353OR.64