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

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] 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
[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