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  • Selling a watch
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  • CGU
  • Privacy policy
  • CGU Marketplace

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Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 1
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 2
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 3
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 4
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 5
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 6
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 7
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 8
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 9
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 10
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 11
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 1
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 2
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 3
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 4
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 5
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 6
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 7
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 8
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 9
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 10
Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set - Image 11
StoreJaeger-LeCoultreMaster Ultra Thin

Jaeger-LeCoultre Master Ultra Thin Réserve de Marche - Q1378420 - Excellent - Full Set

An exemplar of refined watchmaking, this Jaeger‑LeCoultre Master Ultra Thin Réserve de Marche (Ref. Q1378420) pairs a timeless39 mm stainless steel case with a silver dial and clean, numeral-free indexes for an exceptionally elegant wrist presence. Powered by Jaeger‑LeCoultre Caliber938 automatic movement, the watch offers a 43-hour power reserve with the signature power-reserve indicator, and is finished on a matching stainless steel bracelet. Water resistant to5 ATM, the ultra-thin profile makes it ideal for both formal and everyday wear. Offered in excellent condition and complete with original box and papers from 2025, this full-set example assures provenance and authenticity for the discerning collector. Available in Düsseldorf, DE and priced at 9,500 EUR, this Master Ultra Thin Réserve de Marche is a rare opportunity to acquire a modern JLC classic that combines understated aesthetics with technical distinction.
$11,158
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With papers
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Düsseldorf / Germany
2025

Description

The Master Ultra Thin Réserve de Marche Stainless Steel / Silver / Alligator from Jaeger-LeCoultre's Master Ultra Thin collection represents a pinnacle of horological excellence. Introduced as a testament to the brand's rich legacy, this timepiece showcases exceptional craftsmanship and innovation. It features Pure lines and a perfectly balanced dial create a beautiful stage-setting for one of the most emblematic mechanical complications. Two classic complications – a power-reserve indication and a pointer-type date display – are elegantly associated in this model: A sapphire crystal caseback reveals its automatic Calibre 938. With its combination of sophisticated design and technical brilliance, the Master Ultra Thin Réserve de Marche Stainless Steel / Silver / Alligator is an ideal companion for both daily wear and special occasions. From its Master Ultra Thin lineage to its meticulously crafted details, this model stands out as a symbol of luxury and precision. Whether appreciated for its technical attributes or aesthetic charm, it underscores Jaeger-LeCoultre's unwavering dedication to the art of fine watchmaking.

BrandJaeger-LeCoultre
ModelMaster Ultra Thin
Reference1378420
Movementjaeger-lecoultre caliber 938
Case materialstainless steel
Bezelgem-set
Crystalsapphire
Case backopen
Case shaperound
Case diameter39
Case height9.9
Water resistance50
Dial colorsilver
Indexesstick / dot
Handsdauphine
Dial finishsunburst
Movement typeautomatic
Displayanalog
Jewels41
Power reserve40
Frequency28800
Datedate
Handshours, minutes, small seconds
Strap materialleather
Strap typestrap
Strap clasppin buckle
Gendermen
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