Jaeger-LeCoultre Master Ultra Thin Master Ultra Thin Squelette White Gold

Reference 13435SQ

About this watch

The Jaeger-LeCoultre Master Ultra Thin Squelette White Gold (13435SQ) is a masterpiece of luxury watchmaking. This exquisite timepiece combines elegance and technical sophistication with a rich heritage. Crafted from white gold, the round case with a diameter of 38 mm and a height of just 3.60 mm is incredibly slim, making it perfect for formal or casual settings. The open back showcases the intricate skeletonized movement inside, while the blue enamel dial adds a touch of boldness. With an impressive frequency of 21,600 vibrations per hour and a power reserve of 33 hours, this hand-wound movement is both a technical marvel and a reliable companion for your daily adventures. Whether you're dressing up or going out for a casual dinner, the Master Ultra Thin Squelette fits seamlessly into any occasion, inviting conversation and admiration with its understated elegance. This watch isn't just a timekeeper; it's an expression of artistry, showcasing Jaeger-LeCoultre's meticulous craftsmanship. Its price tag may be steep at $60,500, but when you consider the craftsmanship, heritage, and timeless appeal, it becomes clear that this watch is worth every penny.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • White Gold Case
  • Sapphire Crystal
  • Open-Back Design
  • Skeletonized Movement
  • Hand-Wound Caliber 849A SQ
  • 33-Hour Power Reserve
  • 30-Meter Water Resistance

Specifications

Brand
Jaeger-LeCoultre
Family
Master Ultra Thin
Model
Master Ultra Thin Squelette White Gold
Reference
13435SQ
Movement
849a-sq
Movement Features
  • Hours, Minutes
Case
White Gold 38mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
30

Current Listings

[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
[WTS] JLC Jaeger-LeCoultre Master Ultra Thin Reserve de Marche

JLC Jaeger-LeCoultre Master Ultra Thin Reserve de Marche

A Jaeger-LeCoultre Master Ultra Thin Reserve de Marche, purchased in 2016. The watch features a replaced buckle, as documented by JLC, and includes original records.

  • Condition: Excellent
  • Box And Papers: Yes
Posted at
May 10, 2026, 12:48 AM
Active
[WTS] GRAIL MODERN DRESS WATCH! Jaeger-LeCoultre Master Ultra Thin Moon Phase in 18K Pink Gold Full 2023 Set Ref Q1362580

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

This Jaeger-LeCoultre Master Ultra Thin Moon Phase in 18K pink gold features a gorgeous gradient blue dial and is a modern dress watch perfection with sharp lines and deep gold hallmarks.

  • Condition: Clean condition, full set with original accessories
  • Case diameter: 40mm
  • Movement power reserve: 70 hour
Posted at
May 3, 2026, 10:54 PM
Active
[WTS] Jaeger-LeCoultre Master Ultra Thin Moon, ref. Q1368480 Blue

Jaeger-LeCoultre Master Ultra Thin Moon, ref. Q1368480 Blue

The Jaeger-LeCoultre Master Ultra Thin Moon in stainless steel features a blue sunray-brushed dial with rhodium-plated hour markers. The watch has a slim profile at 39mm across and 9.3mm thick.

  • Condition: like-new
  • Case diameter: 39mm
  • Thickness: 9.3mm
  • Water resistance: 5 bar
Posted at
May 3, 2026, 12:10 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