2023 Jaeger-LeCoultre Master Control Calendar Complete Set

Jaeger-LeCoultre Master Control Calendar Q4148120

Video footage available upon request. Open to offers. Bracelet sizing service available.

Model Background

The Jaeger-LeCoultre Master Control Calendar is one of the most refined complete calendar moonphase watches in production — and one of the strongest value propositions in haute horlogerie. JLC has been building calendar complications since the 1940s, and the current Master Control Calendar is a direct descendant of those Triple Calendar pieces, updated with modern engineering but faithful to the same classical layout. The Caliber 866AA is entirely developed and manufactured in-house at JLC's Vallée de Joux manufacture, featuring a silicon escapement, an optimized barrel design for a 70-hour power reserve, and 344 components driving a day, date, month, and moonphase display. Every Master Control watch is subjected to JLC's proprietary 1,000 Hours Control certification — a six-week testing program that simulates real-world wearing conditions and exceeds COSC standards in both duration and rigor. The silvered grey sunray-brushed dial is beautifully legible, with polished rhodium-finish numerals and dauphine hands, a jumping date pointer with a red-tipped hand that leaps cleanly over the moonphase aperture at 6 o'clock, and day and month windows tucked neatly beneath 12. At 40mm and just under 11mm thick in stainless steel, it wears like a dress watch but delivers complication-level watchmaking from a manufacture that has supplied movements to nearly every major Swiss house at one point or another. JLC is the watchmaker's watchmaker, and this is one of their most complete daily-wear expressions.

Specifications

Model: Jaeger-LeCoultre Master Control Calendar

Reference: Q4148120

Caliber: Jaeger-LeCoultre 866AA — 34 jewels, 28,800 vph (4 Hz), 344 components, silicon escapement, 1,000 Hours Master Control certified

Case Material: Stainless steel

Case Diameter: 40mm

Case Thickness: 10.95mm

Bezel: Fixed, smooth stainless steel

Crown: Pull/push, stainless steel

Crystal: Sapphire crystal with anti-reflection coating on inner surface

Caseback: Transparent sapphire crystal (screw-secured)

Dial: Silvered grey, sunray-brushed, polished rhodium-finish Arabic numerals at 3, 9, and 12 o'clock with stick hour markers, luminous steel dauphine hands, day and month windows beneath 12 o'clock, date indicated by central red-tipped jumping pointer hand, small seconds and moonphase sub-dial at 6 o'clock

Bracelet: Stainless steel (brushed and polished) with interchangeable brown Novonappa calfskin leather strap

Clasp: Stainless steel double folding clasp with push-button release

Movement: Automatic self-winding

Power Reserve: 70 hours

Water Resistance: 50 meters (5 bar)

Functions: Hours, minutes, small seconds, day, date (jumping pointer), month, moonphase

Condition Report

Case: 10/10

Bezel: 10/10

Crystal: 10/10

Dial/Hands: 10/10

Bracelet: 10/10

Clasp: 10/10

Caseback: 10/10

Polishing Status: Unpolished

Photos taken on full bracelet links, fitting approximately a 20cm (8 inch) wrist.

Delivery Contents

Complete set — outer box, inner box, warranty card, instruction manual, pusher tool, brown Novonappa calfskin leather strap with folding buckle

Please refer to photos for full contents.

Service & Authenticity

The watch is running at 296 degrees of amplitude on the timegrapher. No service history on record. The original Jaeger-LeCoultre 8-year international warranty is active (card dated 02/27/2023), expiring February 2031.

Shipping & Legal

Ships from: Huntsville, AL

Shipping: Fully insured overnight with tracking provided

Shipping within CONUS only

Buyers are responsible for any applicable taxes and duties

Watch is sold in accordance with United States laws and regulations

Closing

All watches are inspected by our watchmakers for condition, authenticity, and functionality before sale. Feel free to reach out via messenger with any questions.