Longines Master Collection Master Collection Power Reserve

Reference L2.666.4.78.6

About this watch

The Longines L2.666.4.78.6 Master Collection Power Reserve exudes luxury with its round stainless steel case, polished finish, and guilloche dial. The beige color provides an excellent backdrop for the Arabic numeral indexes and Feuille hands, which are elegantly designed and easy to read. This watch is a statement piece that captures attention effortlessly, thanks to its sophisticated design and powerful movement. At the core of this timepiece is the Longines caliber L602, an automatic movement that delivers precision and reliability with a frequency of 28,800 vibrations per hour and a power reserve of 42 hours. With 21 jewels, the L602 movement minimizes friction and wear, ensuring longevity. The watch also boasts a power reserve indicator, adding to its aesthetic appeal. This attention to detail is what sets Longines apart from many other brands, making each watch a piece of art that embodies decades of horological expertise. Whether you're at the office or out for a night on the town, this watch is comfortable to wear and pairs well with various outfits. With a water resistance rating of 30 meters, it's suitable for daily wear but not ideal for diving or extensive water sports.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Round stainless steel case
  • Polished finish
  • Guilloche dial
  • Beige color with Arabic numeral indexes and Feuille hands
  • Longines caliber L602 automatic movement
  • Power reserve indicator
  • 42 hours power reserve
  • 21 jewels for reduced friction and wear

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection Power Reserve
Reference
L2.666.4.78.6
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 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 · $1,800
This Longines Master Collection Moonphase Chronograph features a 40mm case, column wheel chronograph, 12-hour chronograph, moonphase display, and triple calendar (date, day, month). The watch is in working condition and keeps good time.

  • Condition: Pre-owned with wear and use, some scratches and scuffs
  • Case size: 40mm diameter
  • Bracelet links: 3 extra links provided
  • Box condition: slightly damaged box with one flap falling off
Posted at
Mar 9, 2026, 5:54 PM
Active
[WTS] Longines Master Collection Chronograph Moonphase L2.673.4.61.2 – $2,850 shipped

Longines Master Collection Chronograph Moonphase L2.673.4.61.2 – $2,850 shipped

Longines - L2.673.4.61.2 · $2,850
Longines Master Collection Chronograph Moonphase watch is being sold in excellent overall condition with light wear, featuring a flawless crystal and dial.

  • Condition: Excellent overall condition, lightly worn with very minor signs of wear consistent with careful use
  • Case marks: faint and visible only on close inspection
  • Leather strap condition: very good condition, minimal to no visible wear due to the deployment clasp design
Posted at
Mar 8, 2026, 3:22 PM
Active
[WTS] Longines Master Collection 190th Anniversary L2.793.4.73.2 Full Set $1700

Longines Master Collection 190th Anniversary L2.793.4.73.2 Full Set $1700

Longines - L2.793.4.73.2 · $1,700
This is a Longines Master Collection 190th Anniversary Edition Watch with a 40mm dial that looks great on the leather bracelet.

  • Condition: Like New
  • Case size: 40mm
  • Bracelet type: Longines leather
  • Clasp type: deployment
Posted at
Mar 6, 2026, 10:14 AM
Active