Longines Master Collection Master Collection Big Date

Reference L2.648.4.51.7

About this watch

The Longines Master Collection Big Date L2.648.4.51.7 is a testament to Swiss watchmaking excellence, combining timeless elegance with functional sophistication. The 40mm round stainless steel case boasts a polished finish and sophisticated profile, while the black guilloche dial adds depth and refinement. Roman numeral indexes enhance readability, while the Feuille hands sweep across the dial with elegance. The big date display at 12 o'clock ensures you never miss an important day. The watch features sapphire glass for scratch resistance and clarity, and an open case back showcases the beautifully crafted Longines caliber L607.2 movement. With a 42-hour power reserve and automatic winding, this timepiece is incredibly user-friendly. Its water resistance of 30 meters makes it perfect for everyday wear. Paired with a high-quality leather strap, this watch feels substantial yet comfortable on the wrist.

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Key Features

40mm round stainless steel case
Black guilloche dial with Roman numeral indexes
Longines caliber L607.2 movement with 42-hour power reserve
Sapphire glass for scratch resistance and clarity
Water resistance of 30 meters
High-quality leather strap
Automatic winding

Specifications

Brand

Longines

Family

Master Collection

Model

Master Collection Big Date

Reference

L2.648.4.51.7

Movement

l607-2

Movement Features

Hours, Minutes, Seconds
Big Date

Case

Stainless Steel 40mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

Current Listings

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

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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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- 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

Active

View listing on r/WatchExchange

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

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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

View listing on r/WatchExchange