Ethos Watch Boutiques

Jaeger-LeCoultre Master Control Calendar

Q4148420

2-year warranty, extendable to 8 years. Register here

*Currently out of stock

The Jaeger-LeCoultre Master Control Calendar exemplifies timeless elegance and technical ingenuity. Crafted in stainless steel, this 40mm timepiece presents a balanced and sophisticated design, featuring a silver sunray-brushed dial with a clear layout. The day, date, and month are displayed prominently, complemented by a moon phase indicator within a semi-circular aperture. A standout feature of this model is the innovative "jumping date" mechanism, allowing the date hand to leap over the moon phase sub-dial, preserving an uninterrupted view. This detail highlights Jaeger-LeCoultre's commitment to both functionality and design precision. The watch is powered by the in-house calibre 866, a self-winding movement offering a power reserve of 70 hours. Visible through the sapphire caseback, the movement is adorned with fine finishing, such as Côtes de Genève and perlage, exemplifying the brand’s mastery in haute horology.

Full Specification

  • CollectionMaster Control
    SeriesN/A
    Model NoQ4148420
  • Movement
    Features Day-Date, Moon Phase, Small Seconds, Month
    Movement Automatic
    Calibre 866
    Case
    Case Size 40 mm
    Case Thickness 10.95 mm
    Case Shape Round
    Case Material Steel
    Case Back See-through Case Back
    Lug Width 20 mm
    Glass Material Sapphire Crystal
    Dial
    Luminosity On Hands, Hour Markers
    Dial Colour Silver
    Hands Dauphine
    Indexes Dauphines
    Strap
    Strap Material Leather
    Strap Colour Brown
    Interchangeable Strap Yes
    Clasp Type Double Folding Buckle
    Buckle/Clasp Material Steel
    Other
    Gender Men
    Water Resistance (M) 50
    Warranty Period 2-year warranty, extendable to 8 years. Register here
    Country of Origin Switzerland

About the Jaeger-LeCoultre Master Control Collection

Introduced in 1992, the Jaeger-LeCoultre Master Control collection draws its name from the maison’s uncompromising "1000 Hours Control" certification, a rigorous series of tests that push each timepiece to the limits of precision, reliability, and durability. This meticulous approach ensures that every watch leaving the workshop meets the brand's highest standards of excellence. The collection has become a benchmark for mechanical ingenuity, showcasing Jaeger-LeCoultre’s ability to combine traditional craftsmanship with modern refinement.

Design And Features

True to its ethos, the Master Control collection is distinguished by its clean, minimalist design, favouring function over embellishment while maintaining an aura of quiet luxury. The round cases, often crafted in stainless steel or rose gold, exude timeless appeal with their slender profiles and polished surfaces. The dials, whether silvered or sunray-brushed, are meticulously laid out, featuring applied indices and dauphine hands that enhance legibility. Notable models, such as the Master Control Date, Master Control Chronograph, and Master Control Calendar, reflect Jaeger-LeCoultre’s ability to incorporate useful complications into sleek designs.

Iterations And Movements

Among the many outstanding models within the Master Control collection, the Master Control Geographic stands as a true horological gem. Combining elegance with practical sophistication, this timepiece features an innovative world time display. The second time zone can be adjusted with ease, while the city disc elegantly frames the dial, offering a harmonious balance between function and design. Another standout, the Master Control Chronograph Calendar, is a testament to the brand’s technical mastery, blending a chronograph complication with a triple calendar and moon phase, all within a streamlined case.

Powered by Jaeger-LeCoultre’s in-house automatic calibres like the 899 and 751, which are renowned for their technical innovation, boast impressive power reserves of up to 70 hours. Through sapphire crystal casebacks of some of the Master Control, wearers can admire the meticulous finishing and engineering that goes into each movement, including Geneva stripes and blued screws.

Jaeger-LeCoultre Master Control Calendar

ABOUT THE MOVEMENT

The Jaeger-LeCoultre 866 calibre is a remarkable automatic movement, intricately composed of 344 individual components housed within a single barrel. This finely engineered mechanism is powered by 34 jewels and operates at a frequency of 28,800 vibrations per hour. With an impressive power reserve of 70 hours, the calibre achieves a strikingly slender profile of just 6.15mm. Its aesthetic appeal is enhanced by elegant Cote de Genève and perlage decorations, complemented by distinctive bluish screws. This calibre supports a range of functions, including hours, minutes, and small seconds, as well as day, month, and moon phase complications, making it an ideal and dependable partner for select Master Control watches.

866

    • Brand Jaeger-LeCoultre
    • Reference 866
    • Movement Automatic
    • Display Analog
    • Power Reserve approx. 70 hours
    • Jewels 34
    • Frequency 28800 bph

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