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.
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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 l26734786

Longines Master Collection l26734786

Longines - L2.673.4.78.6 · $2,100
A classic piece that blends timeless design with everyday wearability, perfect for both formal and casual occasions.

  • Condition: 9/10 (very well cared for)
  • Movement type: Automatic
  • Complications: Chronograph + day/date
Posted at
May 1, 2026, 11:19 AM
Active
[WTS] Longines Master Collection World Time Ref. L2.631.4.70.6 | Excellent Condition (Box, Booklet, Card) | $1550

Longines Master Collection World Time Ref. L2.631.4.70.6 | Excellent Condition (Box, Booklet, Card) | $1550

Longines - L2.631.4.70.6 · $1,550
The Longines Master Collection World Time Ref. L2.631.4.70.6 features a modern travel watch design with a stainless steel case and silver barleycorn dial. It includes a world-time city ring, 24-hour scale, and GMT/world-time complication powered by the modified ETA 2824-2 movement.

  • Condition: Excellent
  • Case size: 38.5mm diameter
  • Bracelet length: up to 20cm (8 inches)
  • Movement type: Longines Calibre L635, based on the ETA 2824-2
Posted at
Apr 29, 2026, 9:19 PM
Active