Jaeger-LeCoultre / Master Control Chronometre
Key Highlights
- Three Master Control Chronometre models: Date, Perpetual Calendar and Date Power Reserve.
- COSC-certified movements combined with Jaeger-LeCoultre’s in-house HPG High Precision Guarantee seal.
- Integrated three-row metal bracelet in stainless steel or 18K pink gold with alternating finishes.
- Launch of in-house Calibre 738 with power reserve and date, delivering 70 hours of autonomy.
- All movements run at 4 Hz with finishing visible through the sapphire caseback.
Jaeger-LeCoultre Master Control Chronometre models on integrated metal bracelet” />A New Chapter in the Master Legacy
The Master Control Chronometre brings chronometer precision to an integrated three-reference line – Date, Perpetual Calendar and Date Power Reserve – all powered by in-house calibres including Calibre 738, with a focus on accuracy, ergonomics and daily wear.
It draws on almost 190 years of watchmaking, echoing Futurematic and Geophysic models of the 1950s and the 1973 Master Mariner Chronomètre, whose integrated bracelet and slim case inform today’s style. The Master Control collection of 1992 and its 1,000 Hours Control testing underpin the performance ethos, now reinforced by independent chronometer certification.
HPG: High Precision, Rigorously Proven
Jaeger-LeCoultre’s HPG – High Precision Guarantee – is an in-house certification that complements COSC testing and recalls the HPG designation applied to 4 Hz Calibre 916 watches of the 1970s. Fully cased watches undergo a three-day protocol designed to reflect real-life conditions.
Four parameters are tested: altitude, shocks, positions and temperature. Atmospheric pressure cycles from sea level to 1,004 metres, the watch receives shocks of 25G to 50G, fixed and multi-position cycles reproduce wrist motion, and temperature moves between 18°C at rest and 35°C during simulated activity.
Every Master Control Chronometre bears the HPG emblem on its caseback, indicating that it meets this regime in addition to COSC certification and the “Chronomètre” mention on the dial, while also guaranteeing decorative standards such as circular graining, Côtes de Genève, smoothing, burnishing, polished screws, sunk rubies and refined bevelling.

Design: Integrated, Ergonomic, Distinctly Master
The case and bracelet form a continuous line from flank to first link, with polished bezel, crown and lug bevels set against satin-brushed flanks. The three-row bracelet combines vertically brushed central links with polished triangular prisms, while outer rows echo these angles with V-shaped bevels for comfort and a distinct play of light.
Slim Dauphine hands and faceted applied indexes mirror the bracelet geometry on blue-grey or bronze sunray dials that grade from lighter centres to darker edges. Through the sapphire caseback, 22K pink gold rotors, bevelled bridges and aligned Côtes de Genève reveal the movement architecture.
Three Movements, Three Expressions of Precision
The Master Control Chronometre Date Power Reserve introduces self-winding Calibre 738 in a 39 mm stainless-steel case, with twin sub-dials inspired by the 1951 Futurematic; it brings a power reserve with a red segment, a date track with a red “31” and a 70-hour power reserve at 4 Hz with central seconds.
The Master Control Chronometre Perpetual Calendar uses the latest generation of Calibre 868, only 4.72 mm thick, with sub-dials for months and year, day, date and a moon phase at 6 o’clock, accounting for varying month lengths and leap years until 2100 with all indications synchronised and adjustable via a single corrector.
The Master Control Chronometre Date focuses on time and date in a 38 mm by 8.4 mm profile in stainless steel or 18K pink gold, powered by the latest iteration of automatic Calibre 899 with a 70-hour power reserve at 4 Hz.

Why It Matters
For collectors in the GCC, the Master Control Chronometre brings together chronometer-certified accuracy, an integrated metal bracelet and in-house calibres that balance performance with refined finishing. The mix of stainless steel and 18K pink gold, wearable diameters and 70-hour power reserves supports chronometers designed for daily use across formal and relaxed settings.
To explore additional high-precision creations from Jaeger-LeCoultre and stay informed on Master Control Chronometre references, contact your preferred authorised retailer in the region or subscribe to your usual luxury watch newsletter.
Frequently Asked Questions
What is Jaeger-LeCoultre’s HPG certification and how does it differ from COSC testing?
The HPG (High Precision Guarantee) is Jaeger-LeCoultre’s in-house certification that complements COSC testing by subjecting fully cased watches to a three-day protocol simulating real-life conditions. The HPG tests four parameters: altitude cycling from sea level to 1,004 metres, shocks of 25G to 50G, fixed and multi-position cycles to reproduce wrist motion, and temperature variations between 18°C at rest and 35°C during simulated activity.
What power reserve does the Master Control Chronometre Date Power Reserve offer?
The Master Control Chronometre Date Power Reserve features the in-house Calibre 738 with a 70-hour power reserve at 4 Hz, along with twin sub-dials for power reserve indication with a red segment and a date track with a red ’31’.
Which three models are included in the Master Control Chronometre line?
The Master Control Chronometre line comprises three models: the Date, the Perpetual Calendar, and the Date Power Reserve, all featuring COSC-certified movements combined with Jaeger-LeCoultre’s HPG High Precision Guarantee seal.


