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 Ice Ceramic
Reference 90781OR.18
Reference at a glance
- Brand
- Jaeger-LeCoultre
- Collection
- Master Control
- Model
- Jaeger-LeCoultre Master Control 44 mm Ice Ceramic
- Reference number
- 90781OR.18
- Year / era
- 1968 · 1960s — pre-quartz mechanical era
- Complication
- Moon phase
- Movement
- In-house manual-winding, hand-finished
- Case material
- Ceramic
- Dial type
- Ice blue
- Strap / bracelet
- Oyster bracelet
- Water resistance
- 50 m
- Limited-edition status
- Limited edition of 250 pieces
Case, dial & bracelet
- Case dimensions
- 44 mm
- Case thickness
- 10.2 mm
- Case material
- Ceramic
- Bezel
- Baguette diamond rainbow
- Crystal
- Box sapphire with AR coating
- Dial
- Ice blue
- Hands
- Mercedes hour hand with Chromalight display
- Indexes
- Applied Arabic numerals with luminous coating
- Bracelet / strap
- Oyster bracelet
- Clasp / buckle
- Folding clasp in matching case metal
- Water resistance
- 50 m
Movement
- Movement / calibre
- Calibre 4C — In-house manual-winding, hand-finished
- Movement type
- Automatic, self-winding
- Frequency
- 36,000 vph (5 Hz)
- Power reserve
- 65 hours
- Number of jewels
- 45 jewels
- Complications
- Moon phase
- Functions
- Annual calendar, moon phase
- Watchmaker
- The calibre is built in-house and adjusted in five positions before delivery.
Production & market
- Production period
- 1968 – 1977
- Limited-edition quantity
- 250 pieces
- Current market information
- Thin secondary-market supply — pricing is set piece by piece at auction.
Designer
In-house design studio
The reference was drawn by the manufacture's internal design office, where case, dial and movement architects work alongside the watchmakers rather than as an outside commission.
Historical significance
Jaeger-LeCoultre Master Control 44 mm Ice Ceramic sits within Jaeger-LeCoultre's Master Control line, introduced in 1968. It carries the house codes established since 1833 — ceramic case, ice blue dial and in-house manual-winding, hand-finished — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
- The movement's bridges are decorated even where they will never be seen once the watch is cased.
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 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
Jaeger-LeCoultre Master Control 44 mm Mother-of-pearl Quartz
Ref. 39339OR.43