Longines Master Collection Master Collection Date 42

Reference L2.665.4.51.6

Longines Master Collection Date 42

About this watch

The Longines Master Collection Date 42 (L2.665.4.51.6) is a masterpiece of watchmaking, boasting a rich heritage and exceptional build quality. This timepiece features an automatic movement, Longines caliber L691.2, which operates at 28,800 vibrations per hour, ensuring precise and smooth timekeeping. The classic round case made from stainless steel exudes elegance, while the black dial with Roman numeral indexes adds a touch of sophistication. Sapphire glass protects the watch, providing scratch resistance and clarity. With a diameter of 42.00 mm and lug width of 21.00 mm, this watch strikes a balance between presence and wearability. The stainless steel bracelet is designed for comfort, allowing for a snug yet comfortable fit on your wrist. The Master Collection Date 42 is more than just a timepiece; it's a statement of style, precision, and heritage.
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Key Features

  • Longines caliber L691.2 automatic movement
  • Stainless steel case with sapphire glass
  • Black dial with Roman numeral indexes
  • Feuille hands for elegant timekeeping
  • Date function for added functionality
  • Water resistance up to 30 meters
  • 46-hour power reserve

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection Date 42
Reference
L2.665.4.51.6
Movement
l691-2
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] Longines Master Collection Chronograph w/ Custom 1.5 Link for Perfect Sizing! Ref L2.629.4.78.6 - $1,500 Shipped

Longines Master Collection Chronograph w/ Custom 1.5 Link for Perfect Sizing! Ref L2.629.4.78.6 - $1,500 Shipped

Longines - L2.629.4.78.6 · $1,500
This Longines Master Collection Chronograph features a classic white dial and chronograph function, making it both stylish and practical.

  • Condition: next to new
  • Bracelet size customization: custom 1.5 link for perfect sizing
  • Thickness: 11.7 mm
  • Bracelet thickness: custom 1.5 link (replace two links instead of one)
Posted at
Dec 22, 2025, 4:39 PM
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[WTS] Longines Master Collection Chrono Moonphase 40MM (L2.673.4.78.6), Longines Leather Strap, Additional Straps $2,200 Shipped

Longines Master Collection Chrono Moonphase 40MM (L2.673.4.78.6), Longines Leather Strap, Additional Straps $2,200 Shipped

Longines - L2.673.4.78.6 · $2,200
This Longines Master Collection Chrono Moonphase features a 40MM case with moon phase and chronograph functions. It comes with box, warranty card, and multiple straps.

  • Condition: Pre-owned with minor surface marks
  • Case size: 40mm diameter
  • Straps included: 4
Posted at
Dec 22, 2025, 12:16 PM
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[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
View listing on r/WatchExchange
[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
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[WTS] - Longines Master Collection 44m Chronograph

- Longines Master Collection 44m Chronograph

Longines - 44m Master Collection Chronograph · $2,600
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
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[WTS] Longines Master Collection. Big Date. 40mm. Automatic.

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

Longines - Master Collection. Big Date. Automatic. 40mm. · $1,100
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
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[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
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