Longines Master Collection Master Collection Big Date

Reference L2.648.4.51.7

Longines Master Collection Big Date

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
30

Current Listings

[WTS] Longines Master Collection Triple Date Moonphase Chronograph 42mm with box - $1,890

Longines Master Collection Triple Date Moonphase Chronograph 42mm with box - $1,890

Longines - L2-773-4-78-3 · $1,890
Up for sale is my Longines Master Collection, Triple Date Moonphase Chronograph 42mm. The watch has a steel case, chronograph function, moonphase complication, and comes with its original box.

  • Condition: Great condition with minimal marks on the case sides and caseback, light hairlines on the high polished bezel and bracelet centerlinks/sides
  • Case size: 42mm
  • Bracelet size: up to 7-7.25inch wrists depending on wrist shape
Posted at
May 19, 2026, 8:56 PM
Active
View listing on r/WatchExchange
[WTS] Longines Master Collection Complete Calendar Chronograph ref. L2.773.4.78.6 | Excellent Condition (Full Set: Box, Papers, Card, Purchase Invoices With International Warranty Until 2029) | $2400

Longines Master Collection Complete Calendar Chronograph ref. L2.773.4.78.6 | Excellent Condition (Full Set: Box, Papers, Card, Purchase Invoices With International Warranty Until 2029) | $2400

Longines - L2.773.4.78.6 · $2,400
Up for sale is the Longines Master Collection Complete Calendar Chronograph ref. L2.773.4.78.6, a traditional Swiss watch with a lot of mechanical charm packed into a single piece.

  • Condition: Excellent
  • Case Size: 42mm diameter
  • Thickness: 14.2mm
  • Movement Type: Automatic Chronograph
Posted at
May 18, 2026, 11:14 PM
Active
View listing on r/WatchExchange
[WTS] Longines Master Collection Salmon Dial 38.5mm L2.843.4.93.2 Full Set

Longines Master Collection Salmon Dial 38.5mm L2.843.4.93.2 Full Set

Longines - L2.843.4.93.2 · $1,800
The Longines Master Collection features a stunning salmon dial with black Arabic numerals and blued/black polished hands, giving it an elegant vintage-inspired look.

  • Condition: Excellent / barely worn
  • Case size: 38.5mm
  • Thickness: 10.2mm
  • Movement: Longines Caliber L893
Posted at
May 18, 2026, 10:34 PM
Active
View listing on r/WatchExchange
[WTS] Longines Master Collection L2.893.4.78.6. 42mm Black Dial Automatic on Bracelet Full Kit - $1,425

Longines Master Collection L2.893.4.78.6. 42mm Black Dial Automatic on Bracelet Full Kit - $1,425

Longines - L2.893.4.78.6 · $1,425
This Longines Master Collection automatic watch features a stainless steel case, black textured dial with Roman numeral hour markers, and date display at 3 o'clock. It comes as a full kit with box, papers, booklet, and accessories.

  • Condition: Pre-owned in very good overall condition
  • Case size: 42mm
  • Movement type: Automatic
  • Water resistance: 30m
Posted at
May 15, 2026, 3:17 PM
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[WTS] Longines Master Collection 40mm Rose Gold L2.793.5.79.7 w Box $1900

Longines Master Collection 40mm Rose Gold L2.793.5.79.7 w Box $1900

Longines - L2.793.5.79.7 · $1,900
A rose gold dress watch with a 40mm case, available as a standalone timepiece or paired with its matching 18K rose gold bracelet.

  • Condition: Good shape
  • Material: Rose Gold
  • Bracelet material: 18K Rose Gold
Posted at
May 14, 2026, 3:07 PM
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[WTS] Longines Master Collection World Time Ref. L2.631.4.70.6 | Excellent Condition (Box, Booklet, Card) | $1550

Longines Master Collection World Time Ref. L2.631.4.70.6 | Excellent Condition (Box, Booklet, Card) | $1550

Longines - L2.631.4.70.6 · $1,550
The Longines Master Collection World Time Ref. L2.631.4.70.6 is a modern travel watch with a stainless steel case, silver barleycorn dial, and world-time city ring.

  • Condition: Excellent
  • Case size: 38.5mm diameter
  • Bracelet length: up to 20cm (8 inches)
  • Movement: Longines Calibre L635 (based on ETA 2824-2 with GMT/world-time complication)
Posted at
May 10, 2026, 10:47 PM
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[WTS] Longines Master Collection Moonphase L2.909.4.78 — 40mm — Full Kit — $1,699 Shipped 🔥

Longines Master Collection Moonphase L2.909.4.78 — 40mm — Full Kit — $1,699 Shipped 🔥

Longines - L2.909.4.78 · $1,699
A Longines Master Collection Moonphase watch in a 40mm case, featuring a moon phase display.

  • Condition: Good overall, with light hairlines throughout.
  • Case size: 40mm
  • Shipping options: FedEx 2-Day fully insured (+$15 overnight)
  • Shipping location: Chicago
Posted at
May 10, 2026, 7:59 PM
Active
View listing on r/WatchExchange