Jaeger-LeCoultre Master Ultra Thin Master Ultra Thin Réserve de Marche Stainless Steel / Blue / Alligator
Reference 1378480
About this watch
The Jaeger-LeCoultre Master Ultra Thin Réserve de Marche, model number 1378480, is a masterpiece of horology that embodies elegance and functionality. Its stunning blue dial with sunburst finish creates a captivating play of light, while the slim profile measures just 9.80 mm in height. The watch features stick and dot indexes, Dauphine hands, and a small seconds subdial at the 6 o'clock mark. Crafted from high-quality stainless steel, the case is durable and luxurious, with a gem-set bezel adding to its allure. The self-winding Jaeger-LeCoultre Caliber 938/1 movement operates at 28,800 vibrations per hour, offering a power reserve of approximately 40 hours. With a diameter of 39.00 mm, this watch strikes a perfect balance between elegance and wearability. Whether attending a formal event or simply enjoying a night out, the Master Ultra Thin Réserve de Marche will elevate your look and make a statement.
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Key Features
- Jaeger-LeCoultre Caliber 938/1 movement
- Stunning blue sunburst dial
- Slim profile (9.80 mm)
- Gem-set bezel
- Sapphire glass
- Elegant alligator leather strap
- 40-hour power reserve
Specifications
- Brand
- Jaeger-LeCoultre
- Family
- Master Ultra Thin
- Model
- Master Ultra Thin Réserve de Marche Stainless Steel / Blue / Alligator
- Reference
- 1378480
- Movement
- 938-1
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date
- Power Reserve Indicator
- Case
- Stainless Steel 39mm
- Dial Color
- Blue
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings

Jaeger LeCoultre Master Ultra Thin Moon - 39mm - 1368430 ( unworn / 2025 )
A Jaeger LeCoultre Master Ultra Thin Moon in unworn condition, complete with all original boxes and papers.
- Condition: unworn
- Case material: Stainless Steel
- Case size: 39mm
- Movement: JLC Calibre 925 Movement (Automatic)
Jaeger-LeCoultre Master Ultra Thin Certified 1907 Jubilee Platinum 950 LIMITED
The Jaeger-LeCoultre Master Ultra Thin 1907 Jubilee Platinum 950 is a limited edition watch with a manual winding movement, platinum case, and silver dial. It's available in a very good condition and comes with a JLC card and extended warranty.
- Condition: very good
- Case material: platinum
- Case dimensions: 39mm diameter
- Dial color: silver
Jaeger-LeCoultre Master Ultra Thin Certified 18k Rose Gold Q1452404 145.2.79.S
The Jaeger-LeCoultre Master Ultra Thin is a pre-owned, 18k Rose Gold watch with a Silver dial and Manual movement.
- Condition: Excellent condition as pictured
- Case Material: 18k Rose Gold
- Case Dimensions: 35mm diameter
- Water Resistance: 30m / 3 ATM

Jaeger LeCoultre Master Ultra Thin Moon - 39mm - 1368430 ( unworn / 2024 )
This Jaeger LeCoultre Master Ultra Thin Moon is a stainless steel automatic watch with a 39mm case. It features the JLC Calibre 925 movement and comes complete with all original boxes, papers, and warranty card.
- Condition: Unworn
- Case material: Stainless Steel
- Case size: 39mm
- Movement type: Automatic