Master Control Calendar Automatic 40mm 18-Karat Rose Gold and Alligator Watch, Ref No. Q4142520

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Editor's Notes

When it comes to the world's greatest watchmakers, Jaeger-LeCoultre is up there with the best of them - the brand still remains one of the only manufacturers to produce all the components of each calibre in house. Modelled on a watch that was released back in the 1940s, this 'Master Control Calendar' timepiece has been assembled in the label's historic workshop in Le Sentier, Switzerland and features day and month windows, as well as a moon-phase complication across the silvered sunray-brushed dial. Encased in polished 18-karat rose gold, the exhibition case back reveals the impressive workmanship behind the movement, while the supple alligator strap will age handsomely.

We offer an eight-year warranty for all working parts and manufacturing faults for Jaeger-LeCoultre watches. For more information, contact one of our experts by emailing watches@mrporter.com

Details & Care


  • Swiss-made calibre 866AA automatic movement with 70-hour power reserve
  • 34 jewels, 28,800 Vph


  • Hour, minute and seconds hands
  • Day and month windows
  • Moon-phase window


  • Silvered grey sunray-brushed dial
  • 18-karat rose gold dauphine hands, indices and numerals


  • 18-karat rose gold case
  • Crown for date and time adjustments and manual winding
  • Sapphire glass crystal
  • Exhibition case back
  • Pin buckle-fastening brown alligator strap


  • Case diameter: 40mm; case thickness: 10.95mm
  • Water resistance: 5 bar
  • Comes in a presentation box
  • Alligator: USA
  • This piece has been certified in accordance with the Hallmarking Act 1973
  • Reference number: Q4142520
Delivery and Returns
Find out more about our delivery options. Try items in the comfort of your own home. If they're not quite right, you've got 28 days to request an exchange or return and send them back to us. We'll collect them from your home or office for free.
Product Code 31432202865751142

Returns or Exchanges

Try your purchase in the comfort of your own home and, if it’s not quite right, let us know and we’ll arrange a free collection from your home or office.