Jaeger-LeCoultre Master Ultra Thin Master Ultra Thin Date Stainless Steel / Silver / Alligator

Reference 1238420

About this watch

The Jaeger-LeCoultre Master Ultra Thin Date is a masterpiece of watchmaking, blending classic elegance with modern technology. This exquisite timepiece is the epitome of luxury, featuring a stainless steel case measuring 39mm in diameter and only 7.8mm in height. The round shape is timeless, while the open case back allows you to admire the intricate mechanics of the caliber 899/1 automatic movement. With a water resistance of up to 50 meters, this watch is versatile enough for daily wear. The silver sunburst dial creates a play of light that enhances its charm, and with stick and dot indexes, along with Dauphine hands, the watch is designed for optimal readability. The high-quality alligator leather strap adds to its luxurious feel, while the classic black color complements the silver dial beautifully.
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Key Features

  • Stainless steel case measuring 39mm in diameter and 7.8mm in height
  • Caliber 899/1 automatic movement with 219 components working in harmony
  • Power reserve of 38 hours, ensuring reliability
  • Water resistance up to 50 meters for daily wear
  • Silver sunburst dial with stick and dot indexes and Dauphine hands
  • High-quality alligator leather strap for luxurious feel

Specifications

Brand
Jaeger-LeCoultre
Family
Master Ultra Thin
Model
Master Ultra Thin Date Stainless Steel / Silver / Alligator
Reference
1238420
Movement
899-1
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 39mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] 2025 Jaeger-LeCoultre Master Ultra Thin Moon Ref: Q1368471

2025 Jaeger-LeCoultre Master Ultra Thin Moon Ref: Q1368471

A Jaeger-LeCoultre Master Ultra Thin Moon with a 39mm case and Caliber 925 movement featuring a 70 hour power reserve.

  • Condition: Excellent, slight wear on the strap
  • Case Size: 39mm
  • Movement Power Reserve: 70 hours
Posted at
May 24, 2026, 6:20 PM
Active
[WTS] Jaeger-LeCoultre Master Ultra Thin Moon 39 Ref. Q1368470 | Box & Papers | Extra Strap

Jaeger-LeCoultre Master Ultra Thin Moon 39 Ref. Q1368470 | Box & Papers | Extra Strap

The elegant Jaeger-LeCoultre Master Ultra Thin Moon 39 is a refined modern dress watch with ideal proportions, a clean layout, and exceptional elegance. It features an in-house automatic Caliber 925/1 and a moonphase with date at 6 o'clock.

  • Condition: Mint condition
  • Case size: 39mm
  • Thickness: 9.9mm
  • Power reserve: 70-hour
Posted at
May 17, 2026, 2:17 PM
Active
[WTS] Jaeger-LeCoultre Master Ultra Thin Moon Ref:Q1368471 Full Set

Jaeger-LeCoultre Master Ultra Thin Moon Ref:Q1368471 Full Set

A 39mm Jaeger-LeCoultre Ultra Thin Moon with an updated Caliber 925 movement and 70 hour power reserve is up for sale. The watch comes complete with its box, papers, travel pouch, and warranty card.

  • Condition: Excellent condition, slight wear on the strap
  • Case size: 39mm
  • Movement: Caliber 925
  • Power reserve: 70 hours
Posted at
May 15, 2026, 2:13 PM
Active
[WTS] 2024 Jaeger LeCoultre Master Ultra Thin Moon. Q1368480. Gorgeous Blue Dial. Warranty through 2032. $7,600.

2024 Jaeger LeCoultre Master Ultra Thin Moon. Q1368480. Gorgeous Blue Dial. Warranty through 2032. $7,600.

A beautiful Jaeger LeCoultre Master Ultra Thin Moon with a deep blue sunray dial, dated March 2024, and an extended warranty running through 2032.

  • Condition: Excellent condition with some wear on the strap
  • Warranty expiration year: 2032
Posted at
May 13, 2026, 4:47 PM
Active
[WTS] Jaeger LeCoultre Master Ultra Thin Moon 39mm 1368430 ( unworn / 2026 / box and papers )

Jaeger LeCoultre Master Ultra Thin Moon 39mm 1368430 ( unworn / 2026 / box and papers )

This is an unworn Jaeger LeCoultre Master Ultra Thin Moon, a 39mm stainless steel automatic watch with the JLC Calibre 925 movement.

  • Condition: Unworn
  • Case diameter: 39mm
  • Case material: Stainless Steel
  • Movement: JLC Calibre 925
Posted at
May 13, 2026, 12:07 PM
Active
[WTS] GRAIL DRESS WATCH! Jaeger-LeCoultre Master Ultra Thin Moon Phase in 18K Pink Gold Full 2023 Set Ref Q1362580

GRAIL DRESS WATCH! Jaeger-LeCoultre Master Ultra Thin Moon Phase in 18K Pink Gold Full 2023 Set Ref Q1362580

A stunning Jaeger-LeCoultre Master Ultra Thin Moon Phase in 18K pink gold with a gorgeous gradient blue dial, featuring a moon phase sub-dial and a sapphire crystal case back.

  • Condition: Full set, clean condition, 2.5 years old, under warranty
  • Case diameter: 39mm
  • Case thickness: 9mm
  • Movement: Automatic Cal. 925
Posted at
May 10, 2026, 11:14 PM
Active
BNIB Jaeger-LeCoultre MASTER ULTRA THIN MOON STAINLESS STEEL 2025 FULL SET

BNIB Jaeger-LeCoultre MASTER ULTRA THIN MOON STAINLESS STEEL 2025 FULL SET

A Jaeger-LeCoultre Master Ultra Thin Moonphase watch in stainless steel with a silver dial, featuring a 39mm case and a black alligator leather strap. The watch is complete with its original packaging and comes under an 8-year factory warranty.

  • Condition: Brand New In Box (BNIB)
  • Case size: 39mm
  • Material: stainless steel
  • Strap material: black alligator leather
Posted at
Apr 1, 2025, 8:54 PM
Active
BNIB Jaeger-LeCoultre MASTER ULTRA THIN DATE BLUE DIAL Q1238480 2025 FULL SET

BNIB Jaeger-LeCoultre MASTER ULTRA THIN DATE BLUE DIAL Q1238480 2025 FULL SET

This is a brand new Jaeger-LeCoultre Master Ultra Thin Date with a blue dial and 39mm stainless steel case, on a black alligator leather strap.

  • Condition: Brand new in box (BNIB)
  • Case size: 39mm
  • Material: stainless steel
Posted at
Mar 18, 2025, 9:49 PM
Active
2023 JLC Moonphase Master Ultra Thin

2023 JLC Moonphase Master Ultra Thin

The Jaeger-LeCoultre Master Ultra Thin Moon combines a refined, minimalist design with the sophisticated complication of a moon phase indicator in a sleek, ultra-thin case that measures just 9.3mm thin.

  • Condition: Excellent Unworn Condition
  • Case Material: Stainless steel
  • Dial Color: Silver-Grey
  • Movement Type: Automatic
Posted at
Mar 7, 2025, 6:54 PM
Active