Longines Master Collection Master Collection 40 Chronograph Calendar Stainless Steel / Silver / Alligator

Reference L2.673.4.78.3

About this watch

The Longines Master Collection 40 Chronograph Calendar is a masterpiece that exudes sophistication and functionality. With its refined design and intricate movements, it's a watch that not only tells time but tells a story. The 40mm stainless steel case boasts a polished finish that catches the light in all the right ways, while the silver guilloche dial provides a stunning backdrop for the watch's features. The addition of the moonphase indicator adds an astronomical touch, allowing you to track the lunar cycle—a perfect blend of beauty and functionality. At the heart of this timepiece is the Longines caliber L678.2, a self-winding movement based on the ETA/Valjoux 7751, with 25 jewels and a frequency of 28,800 vibrations per hour. The 42-hour power reserve means you can take the watch off for a day or two and still have it running when you put it back on. With an additional 24-hour hand, a full calendar displaying the day, date, and month, this watch is designed for those who appreciate the finer details in life.
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Key Features

  • 40mm stainless steel case with polished finish
  • Silver guilloche dial with intricate pattern
  • Moonphase indicator with astronomical touch
  • Chronograph feature with intuitive interface
  • Longines caliber L678.2 self-winding movement
  • 42-hour power reserve
  • Additional 24-hour hand and full calendar display

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection 40 Chronograph Calendar Stainless Steel / Silver / Alligator
Reference
L2.673.4.78.3
Movement
l678-2
Movement Features
  • Hours, Minutes, Small Seconds, Additional 24 Hour Hand (fixed)
  • Date, Day, Month
  • Chronograph
  • Moonphase
Case
Stainless Steel 40mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] 40mm Longines Master Collection Chronograph / Moon Phase Ref.L2.673.4.78.3

40mm Longines Master Collection Chronograph / Moon Phase Ref.L2.673.4.78.3

Longines - L2.673.4.78.3 · $2,250
The Longines Master Collection Chronograph with Moon Phase features a chronograph, moon phase display, and a full calendar. It has a 40mm case size and is powered by an automatic caliber L687 movement.

  • Condition: Great condition, minor marks on the case
  • Movement: Automatic caliber L687 (modified ETA Valjoux 7751)
  • Case size: 40mm
  • Functions: Chronograph, moon phase display, full calendar (day, date, month)
Posted at
Dec 11, 2025, 1:11 AM
Active
[WTS] Longines Master Collection Moonphase Chronograph - L2.773.4.78.3

Longines Master Collection Moonphase Chronograph - L2.773.4.78.3

Longines - L2.773.4.78.3 · $1,950
This Longines Master Collection Moonphase Chronograph combines a chronograph, complete calendar, and moonphase in a traditional yet well-balanced design.

  • Condition: Very good, used condition with minor wear throughout the case
  • Case size: 42mm diameter
  • Movement type: Column-wheel automatic chronograph
  • Power reserve: 54 hours
Posted at
Dec 19, 2025, 12:40 PM
Active
[WTS] Longines Master Collection Chrono Moonphase 40MM (L2.673.4.78.6), Longines Leather Strap, Additional Straps $2,500 Shipped

Longines Master Collection Chrono Moonphase 40MM (L2.673.4.78.6), Longines Leather Strap, Additional Straps $2,500 Shipped

Longines - L2.673.4.78.6 · $2,500
A Longines Master Collection Chrono Moonphase 40MM watch with box and warranty card, featuring multiple straps including a leather strap from the manufacturer.

  • Condition: Minor surface marks, no functional issues
  • Case size: 40mm diameter
  • Box and papers: Yes, box and warranty card dated December 2024
Posted at
Dec 15, 2025, 1:24 PM
Active
[WTS] - Longines Master Collection 44m Chronograph

- Longines Master Collection 44m Chronograph

This is a blue Longines Master Collection Chronograph, a beautiful timepiece with a 44mm diameter case. It features a chronograph function and comes in great condition.

  • Condition: Great condition, leather strap is a bit worn
  • Band Material: Metal
  • Case Size: 44mm
Posted at
Dec 13, 2025, 1:14 PM
Active
[WTS] Longines Master Collection. Big Date. 40mm. Automatic.

Longines Master Collection. Big Date. 40mm. Automatic.

A Longines Master Collection watch with a big date display and automatic movement, featuring a 40mm case size.

  • Case diameter: 40mm
  • Shipping cost included: true
Posted at
Dec 11, 2025, 9:14 AM
Active