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Certified Pre-Owned Watch Program

Jaeger LeCoultre Master Control Calendar Day Date MoonPhase 147.8.41.S Q151842A

Regular price $0.00

Out of stock

It all started during the winter of 1930-1931. While travelling in India, the Swiss businessman and watch collector César de Trey attended a polo match at a club of British army officers. One of these officers, who had just broken the glass of his watch, challenged de Trey to create a watch model robust enough to resist to a polo match. César de Trey discussed the idea with Jacques-David LeCoultre, the then owner of the LeCoultre manufacture, who could provide the movements for the new watch. LeCoultre appointed the firm Jaeger S.A. for the creation of the reversible case, which in turn contracted the French designer René-Alfred Chauvot, the actual inventor of the unique slide and flip mechanism. The result was an elegant watch with a dial that could flip, protecting it from shocks while offering a case back with a generous surface that could be used for personalization. First Jaeger LeCoultre Reverso AD

This is a stainless-steel Jaeger-LeCoultre Master Calendar 147.8.41.S. It has an alligator leather strap with a stainless-steel folding deployment clasp and scratch resistant sapphire crystals. It includes a pull-out signed winding crown, and a corrector on the left-side case band at 8 o'clock, and two more at 2 and 4 o'clock for the date function. It includes an exhibition sapphire crystal display case back secured with four screws engraved with "JAEGER LECOULTRE – SWISS MADE – MASTER CONTROL -1000 HOURS – 5 ATM," and a serial number.

The 40mm diameter round 3-body case, curved lugs, and flat angled bezel. The dial is called satin silver with applied stainless-steel dart hour index markers, luminous dots, and frosted steel dauphine sword hour and minute hands. There are black perimeter Arabic numerals for the radial date, and there is a red crescent-tipped indicator hand. It has an arched power reserve indicator of 12 o'clock with a sword blued hand, and there are steel-framed day and month aperture windows at 9 and 3 o'clock. A recessed large moon phase subsidiary dial with a blued sword indicator hand is at 6 o'clock. It's water resistant to 50 meters, it has a 40-hour power reserve at full winding window.

This Jaeger-LeCoultre Master Calendar 147.8.41.S has a mechanical automatic caliber 924 movement is rhodium plated with radial Cotes de Geneve embellishment. It's constructed with 41 jewels, a shock absorber mechanism, and a straight-line lever escapement. It has a monometallic balance and a self-compensating flat balance spring. The mechanism oscillates at a frequency of 28,800 vph (4 Hz).

This is a beautiful Jaeger-LeCoultre Master Calendar 147.8.41.S was introduced in the 2000's come with JLC white box. Defiantly a collector watch. Please look at all the pictures, as they are part of the description. The watch is working and was Serviced by last owner.  The condition of the watch is the same as it appears in the photos.   The watch is working and is part of our new Certified Pre-Owned CPO Program.  Contact me if you have any questions first.




Brand: Jaeger-LeCoultre - Model: Master Calendar 147.8.41.S - Circa: 2000’s


Stainless Steel Case with exhibition Sapphire Case back.

Case Size

≈ 40,00 mm without the crown and ≈ 48,00 mm Lug to Lug

Case Back

Exhibition Sapphire Case back.








Under U.V. light inspection shows good Luminous hands & numbers & indices dial, Swiss made Mark, with Triple date and moon phase, the seconds Hand 6 O'clock and date at 3 O'clock. Shows light patina Please see picture for more detail.


Seconds, Date, Day, Month, Moonphase


Self-Winding Automatic JLC 924

Movement Notes

Just inspected and in great shape. Fully Serviced and Overhauled By last Owner. Please note the power reserve from first bar to 40.  Movement is running. Keeps great time see below time testing.


Genuine JLC Leather with deployment Bracelet, Lug Size: 20mm      Please see picture.


JLC White box (the material on the box is flaking a bit).

Reference #

147.8.41 S -    Q151842A

Made in


Water Resistance

No. Please pressure test before water use.

Service Level

2         (Please see Tab below for details) Please keep in mind when comparing serviced watches with none serviced watch.  Price is at least $300-$500 more based on complications. Since old watch are like old cars you never know what you gone get.

Timing Test **

+8s/day  In-House Time Test Results (See Service Level Tab)**

Certified Pre-Owned

Passed 25-point inspection. Please see tab below for details.


3-Month Service Warranty (Please see Tab below for details)


All watch functions tested and operable. 



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