Longines Master Collection Master Collection Power Reserve

Reference L2.666.6.78.6

About this watch

The Longines Master Collection Power Reserve is a stunning timepiece that embodies elegance, precision, and practical functionality. Its luxurious yellow gold case exudes warmth and sophistication, while the beige guilloche dial showcases intricate craftsmanship. The Arabic numeral indexes provide excellent readability, and the feuille hands move elegantly across the dial, protected by a high-quality sapphire crystal. At its heart lies the Longines caliber L602, an automatic movement based on the ETA 2897, boasting a frequency of 28,800 vibrations per hour for precision and reliability. The power reserve indicator allows you to see how much energy is left in the movement, ensuring that your watch is always ready to go. With a date function and water resistance of 30 meters, this timepiece is perfect for everyday wear. The comfort of a high-quality leather strap complements the gold case, providing a soft touch against the wrist.
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Key Features

  • Longines caliber L602 automatic movement
  • Yellow gold case with polished finish
  • Beige guilloche dial with Arabic numeral indexes
  • High-quality sapphire crystal for scratch resistance
  • Power reserve indicator and date function
  • Water resistance of 30 meters
  • Leather strap with adjustable nature

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection Power Reserve
Reference
L2.666.6.78.6
Movement
l602
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Power Reserve Indicator
Case
Yellow Gold 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