Longines Master Collection Master Collection Power Reserve

Reference L2.666.6.78.5

About this watch

The Longines Master Collection Power Reserve is a magnificent blend of elegance, functionality, and timeless design. This luxury timepiece tells time with precision, looks stunning on the wrist, and offers a glimpse into the artistry of Swiss watchmaking. Crafted from yellow gold and featuring a beige guilloche dial, this 42 mm round case watch exudes sophistication and charm. The Longines caliber L602 automatic movement, based on the renowned ETA 2897, boasts a power reserve of 42 hours and 21 jewels for smooth operation. With sapphire glass and a water resistance rating of 30 meters, this watch is suitable for everyday wear. Whether you're at the office or out for a casual evening, this watch feels just right. It's an investment that's sure to pay off in style and performance, perfect for collectors, professionals, or anyone looking to elevate their style.
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Key Features

  • Yellow gold casing
  • 42 mm round case
  • Beige guilloche dial
  • Sapphire glass
  • Automatic movement (Longines caliber L602)
  • Power reserve of 42 hours
  • 21 jewels for smooth operation
  • Water resistance rating of 30 meters

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection Power Reserve
Reference
L2.666.6.78.5
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

Longines master collection brushed salmon dial / small sec / 38.5mm / extra OEM strap /

Longines master collection brushed salmon dial / small sec / 38.5mm / extra OEM strap /

Longines - L28434932 · $1,850.002
This Longines Master Collection Automatic watch features a salmon dial and is in the perfect size of 38.5 mm, making it a personal favorite of the seller.

  • Condition: great
  • Case diameter: 38.5mm
  • Dial color: salmon
  • Straps: [object Object],[object Object],[object Object]
Posted at
Jun 14, 2025, 7:19 PM
Active
[wts] Longines master collection brushed salmon dial / small seconds/ xtra OEM strap

Longines master collection brushed salmon dial / small seconds/ xtra OEM strap

Longines - L2.843.4.93.2 · $1,850
This Longines Master Collection watch features a 38.5mm brushed case, a salmon dial, and small seconds function.

  • Condition: Great condition
  • Size: 38.5mm diameter
  • Straps: 2 x Longines OEM straps (Dark Blue croc w deployment clasp and brown croc w buckle) + 1 x blue/grey suede leather aftermarket strap
Posted at
Jun 14, 2025, 4:51 PM
Active
[WTS] Longines Master Collection Chronograph L2.629.4.78.6 40MM

Longines Master Collection Chronograph L2.629.4.78.6 40MM

Longines - L2.629.4.78.6 · $1,400
A Longines Master Collection Chronograph, a timepiece from the Master Collection series with chronograph functionality. It comes with all links and its original box, excluding the cardboard outer packaging.

  • Condition: Pre-owned with minor rash marks
  • Case Size: 40mm diameter
  • Box Contents: all links and box (cardboard outer box not included)
  • Shipping Details: CONUS shipping from military address via USPS
Posted at
Jun 13, 2025, 2:10 PM
Active
Excellent Longines Master Collection Chronograph. L2.629.4.78.6 Steel, Bracelet, Box and Papers. April 2023. Price Reduction

Excellent Longines Master Collection Chronograph. L2.629.4.78.6 Steel, Bracelet, Box and Papers. April 2023. Price Reduction

This Longines Master Collection Chronograph features a silver "BarleyCorn" dial with painted Arabic numerals and blued steel hands. The watch is powered by the self-winding Longines L889 movement, which includes date, hour, minute, and continuous small seconds hands, as well as a central 60 seconds hand and 30 minutes counter at 9 o'clock.

  • Condition: Excellent
  • Movement: Longines L889, Self‑winding chronograph
  • Case size: 40 mm diameter
  • Thickness: 11.7 mm
Posted at
Jun 3, 2025, 2:55 AM
Active