Longines Master Collection Master Collection Power Reserve

Reference L2.666.4.78.3

About this watch

The Longines Master Collection Power Reserve is a masterclass in elegance and functionality. This stunning timepiece boasts a classic beige guilloche dial paired with feuille hands that exude traditional watchmaking charm. The automatic movement, powered by the Longines caliber L602, offers reliability and precision, with a 42-hour power reserve that ensures you stay on schedule. With a water resistance of 30 meters, this watch is perfect for everyday wear, suitable for both formal and casual occasions. The stainless steel case, with a diameter of 42 mm, provides a robust yet comfortable fit on the wrist. Whether you're dressing up or down, this timepiece will make a statement. Its timeless design, combined with dependable functionality, makes it an excellent choice for watch enthusiasts. As a piece of horological art, the Longines Master Collection Power Reserve is an investment that will last a lifetime.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • 42-hour power reserve
  • 30-meter water resistance
  • Automatic movement (Longines caliber L602)
  • Beige guilloche dial with feuille hands
  • Stainless steel case (42 mm diameter)
  • Open back for visibility of movement
  • Sapphire crystal for scratch resistance

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection Power Reserve
Reference
L2.666.4.78.3
Movement
l602
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Power Reserve Indicator
Case
Stainless Steel 42mm
Dial Color
Beige
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] Longines Master Collection Small Seconds L2.843.4.63.2

Longines Master Collection Small Seconds L2.843.4.63.2

Longines - L2.843.4.63.2 · $1,500
The Longines Master Collection Small Seconds is a luxury watch featuring small seconds functionality.

  • Condition: no noticeable flaws
  • Straps Included: true
Posted at
Feb 21, 2026, 2:35 PM
Active
[WTS] Longines Master Collection Moon Phase Chronograph (40mm) reference L2.673.4.78.6

Longines Master Collection Moon Phase Chronograph (40mm) reference L2.673.4.78.6

Longines - L2.673.4.78.6 · $2,499
A Longines Master Collection Moon Phase Chronograph with a 40mm case, featuring complications including hours, minutes, small seconds, date, moon phase display and chronograph functions.

  • Condition: Excellent used condition
  • Case size: 40mm diameter
  • Thickness: 14.3mm
  • Lugu length: 46.7mm
Posted at
Feb 19, 2026, 8:07 PM
Active
Longines Master Collection Mens Automatic Watch - L2.628.5 - 38mm - USED [WTS]

Longines Master Collection Mens Automatic Watch - L2.628.5 - 38mm - USED

Longines - L2.628.5 · $999
The Longines Master Collection is a high-end watch featuring an automatic movement, suitable for formal occasions.

  • Condition: USED
Posted at
Feb 17, 2026, 9:58 PM
Active
[WTS] Longines Avigation w/ Master collection bracelet and OEM leather (Lowest price in the world)

Longines Avigation w/ Master collection bracelet and OEM leather (Lowest price in the world)

Longines - L2.629.4 · $1,200
A Longines Avigation Chronograph with a 40mm black dial, running strong and keeping great time.

  • Condition: Lightly used
  • Bracelet type: Master collection steel bracelet
  • Strap type: OEM leather strap
  • Wrist size compatibility: up to an 8+ inch wrist
Posted at
Feb 15, 2026, 12:59 PM
Active