Longines Master Collection Master Collection Worldtime Black

Reference L2.631.4.51.5

About this watch

The Longines Master Collection L2.631.4.51.5 is a masterclass in elegance and sophistication, with its sleek black dial and elegant Roman numeral indexes commanding attention while maintaining an air of refinement. The round stainless steel case strikes a balance between bold and understated, measuring 39mm in diameter and featuring a lug width of 20mm for comfortable wear. Protected by sapphire crystal, the dial is highly resistant to scratches, making it suitable for everyday wear. One of the standout features of this watch is its world time functionality, allowing you to keep track of time in different parts of the globe with ease. Powered by the Longines caliber L635 movement, a sophisticated automatic mechanism that ensures accurate timekeeping and a power reserve of 38 hours. This watch is not just an accessory, but a statement piece that embodies the brand's rich heritage and commitment to craftsmanship.
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Key Features

  • Longines caliber L635 automatic movement
  • Sapphire crystal for scratch resistance
  • 30 meters water resistance
  • Black dial with Roman numeral indexes
  • 39mm round stainless steel case
  • 20mm lug width for comfortable wear
  • World time functionality

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection Worldtime Black
Reference
L2.631.4.51.5
Movement
l635
Movement Features
  • Hours, Minutes, Seconds, World Time
  • Date
Case
Stainless Steel 39mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] Longines Avigation automatic Chronograph with OEM leather and Master Collection steel bracelet(price reduction)

Longines Avigation automatic Chronograph with OEM leather and Master Collection steel bracelet(price reduction)

Longines - L2.629.4 · $1,250
The Longines Avigation automatic Chronograph features a 40mm black dial with date functionality and chronograph capabilities. It comes with an OEM leather strap and a master collection steel bracelet, making it suitable for both formal and sporty occasions.

  • Condition: Lightly used
  • Bracelet price: $400 (Master Collection steel)
  • Shipping: FedEx 'hold at location'
  • Accepted payment methods: Zelle, cash app, PayPal F&F and G&S(+4.5%)
Posted at
Feb 6, 2026, 8:02 PM
Active
[WTS] Longines Master Collection Chrono Moonphase (40mm)

Longines Master Collection Chrono Moonphase (40mm)

Longines - L2.673.4 · $1,850
A Longines Master Collection Chrono Moonphase watch in good condition, featuring a 40mm case and including OEM bracelet and leather strap.

  • Condition: good pre-owned
  • Size: 40mm diameter
  • Lug width: 21mm
Posted at
Feb 6, 2026, 3:38 PM
Active
[WTS] Longines Master Collection Moon Phase Chronograph (40mm) reference L2.673.4.78.6

Longines Master Collection Moon Phase Chronograph (40mm) reference L2.673.4.78.6

Longines - L2.673.4.78.6 · $2,250
A beautiful Longines Master Collection Moon Phase Chronograph with a 40mm case, featuring hours, minutes, small seconds, date, and chronograph functions.

  • Condition: Excellent used condition
  • Case size: 40mm diameter
  • Thickness: 14.3mm
  • Power reserve: 66 hour
Posted at
Feb 6, 2026, 12:28 PM
Active
[WTS] Longines Master Collection Chronograph w/ Custom 1.5 Link for Perfect Sizing! Ref L2.629.4.78.6 - $1,500 Shipped[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[WTS] 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 is an automatic chronograph watch with a classic white dial and a chronograph function, packaged in its original box with papers included.

  • Condition: Next to new
  • Bracelet size customization: Custom 1.5 link
  • Thickness: 11.7mm
Posted at
Feb 5, 2026, 10:22 AM
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 · $1,850
This Longines Master Collection Moonphase Chronograph features a 40mm case and includes a column wheel chronograph, 12 hour chronograph, moonphase display, and triple calendar.

  • Condition: Pre-owned with wear and use, some scratches and scuffs
  • Authentication: includes Box and Papers with Ebay authentication
  • Service history: unknown, previous owner claimed serviced before selling
  • Box condition: slightly damaged with one flap falling off and taped
Posted at
Jan 31, 2026, 4:06 PM
Active
[WTS] REDUCED PRICE! Longines Master Collection Moon Phase (L29094517) ($1600)

REDUCED PRICE! Longines Master Collection Moon Phase (L29094517) ($1600)

Longines - L29094517 · $1,600
This Longines Master Collection Moon Phase watch has been worn minimally and is in terrific working order. It features a scratch-free crystal, case, and leather strap.

  • Condition: Like new - minimal wear
  • Purchase Price: 2350
  • Asked Price Drop: 150
  • Shipping Included: true
Posted at
Jan 28, 2026, 11:24 PM
Active
[WTS] Longines Master Collection Moon Phase Chronograph (40mm) L2.673.4.78.3

Longines Master Collection Moon Phase Chronograph (40mm) L2.673.4.78.3

Longines - L2.673.4.78.6 · $2,250
A Longines Master Collection Moon Phase Chronograph with a 40mm case, automatic caliber L687, and various complications including date, moon phase display, and chronograph.

  • Case size: 40mm diameter
  • Thickness: 14.3mm
  • Movement frequency: 28'800 VPH
Posted at
Jan 27, 2026, 8:44 PM
Active