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] Lot of three Longines (Conquest, Master Collection, and Spirit) and two NOMOS Glashütte (Club Automat and Metro Neomatik), some with unworn bands, boxes, and papers. Over $16k retail, asking only $6995 for all five watches.

Lot of three Longines (Conquest, Master Collection, and Spirit) and two NOMOS Glashütte (Club Automat and Metro Neomatik), some with unworn bands, boxes, and papers. Over $16k retail, asking only $6995 for all five watches.

A collection of five watches from Longines and NOMOS Glashütte, including the Conquest, Master Collection, Spirit, Club Automat Datum Dunkel, and Metro Neomatik 41 Update.

  • Retail value: $16k
  • Shipping: CONUS shipped
  • Payment methods: Zelle/Venmo preferred, PayPal FF available
Posted at
Dec 7, 2025, 7:25 PM
Active
Longines Master Collection Moonphase L2.673.4.78.3 [WTS]

Longines Master Collection Moonphase L2.673.4.78.3

Longines - L2.673.4.78.3 · $2,100
This is a Longines Master Collection Moonphase watch in the 40mm size, featuring a moonphase display and a full kit with leather strap, links, spring bars, inner box, outer box, manuals, and hang tags.

  • Condition: Near perfect with one small mark near the lugs
  • Size: 40 mm diameter
  • Strap condition: Shows some signs of wear
Posted at
Nov 30, 2025, 11:46 AM
Active
[WTS] Longines Master Collection Moonphase Chronograph 40mm L2.673.4.78.6

Longines Master Collection Moonphase Chronograph 40mm L2.673.4.78.6

Longines - L2.673.4.78.6 · $2,100
This Longines Master Collection Moonphase Chronograph is a 40mm version featuring a Column Wheel, with a box and papers included.

  • Condition: Pre-owned with wear and use
  • Size: 40mm diameter
  • Box condition: Damaged with one flap falling off and taped
  • Papers included: Yes
Posted at
Nov 26, 2025, 11:56 PM
Active