Jaeger-LeCoultre Master Ultra Thin Master Ultra Thin Small Second

Reference 1278420

About this watch

The Jaeger-LeCoultre Master Ultra Thin Small Second is a masterpiece of watchmaking, blending elegance and innovation. This 38.50mm timepiece boasts a slim profile of just 7.60mm, making it suitable for both formal and casual occasions. The stainless steel case features a gem-set bezel, adding a touch of luxury and sophistication. The Jaeger-LeCoultre caliber 896 movement is a testament to the brand's commitment to precision and longevity, with a power reserve of 43 hours. The watch's design is characterized by a stunning sunburst finish in silver, stick and dot indexes, and elegant Dauphine hands. With its water resistance of up to 50 meters, this watch is versatile enough for everyday wear. Its comfortable fit and lightweight nature make it an excellent choice for professional settings. Whether you're dressing up or enjoying a casual day out, the Jaeger-LeCoultre Master Ultra Thin Small Second is an elegant companion that transcends time and trends.

Buy Now on Jomashop

This is an affiliate link

Key Features

Jaeger-LeCoultre caliber 896 movement
38.50mm diameter
7.60mm height
Stainless steel case with gem-set bezel
Sapphire crystal glass
Water resistance up to 50 meters
43-hour power reserve

Specifications

Brand

Jaeger-LeCoultre

Family

Master Ultra Thin

Model

Master Ultra Thin Small Second

Reference

1278420

Movement

896

Movement Features

Hours, Minutes, Small Seconds

Case

Stainless Steel 38.5mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

Current Listings

Jaeger-LeCoultre Master Ultra Thin Moon 39mm Q1368470 $5,850

A Jaeger-LeCoultre Master Ultra Thin Moon in Black features a deep black sunburst dial that plays dynamically under different lighting conditions and an extremely thin profile, making it a classy and elegant dress watch.

Posted at

Jan 17, 2026, 9:09 AM

Active

View listing on r/WatchExchange

Jaeger LeCoultre Master Ultra Thin Moon 36mm

Jaeger LeCoultre - Master Ultra Thin Moon

The Jaeger LeCoultre Master Ultra Thin Moon is a slim and elegant watch featuring a moon phase display.

Posted at

Jan 12, 2026, 9:34 AM

Active

View listing on r/WatchExchange

Jaeger-LeCoultre Master Ultra Thin Moon Rose Gold Box and Papers Q1362510

Jaeger-LeCoultre - Q1362510 · $16,500

The JLC Master Ultra Thin Moon is a very classy dress watch with high horology pedigree, perfect for adding a cultured touch to your collection.

Condition: Excellent
Case Size: 39mm diameter
Movement: Automatic

Posted at

Jan 7, 2026, 8:23 PM

Active

View listing on r/WatchExchange

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

Jaeger-LeCoultre - Q1368430 · $9,325

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

View listing on RolexForums

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

Jaeger-LeCoultre - Q1238480 · $7,525

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

View listing on RolexForums

2023 JLC Moonphase Master Ultra Thin

Jaeger-LeCoultre - Q1368430 · $8,350

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

View listing on RolexForums

2015 Jaeger-LeCoultre Master Ultra Thin Moon 39mm Q1362520 Beige Dial

Jaeger-LeCoultre - Q1362520 · $10,750

2015 Jaeger-LeCoultre Master Ultra Thin Moon Phase watch features a pink gold case with an eggshell beige dial, and includes functions such as hour, minute, seconds, date, and moon phase. The watch is equipped with an adjustable brown alligator leather strap and comes with a watch box.

Condition: Excellent overall condition
Dial color: Eggshell beige
Strap material: Brown Alligator Leather
Buckle type: Pin buckle

Posted at

Mar 3, 2025, 9:51 AM

Active

View listing on RolexForums