Longines Master Collection Master Collection Chronograph

Reference L2.669.4.51.7

About this watch

The Longines Master Collection Chronograph (L2.669.4.51.7) is a masterpiece of luxury watchmaking, blending timeless elegance with cutting-edge technology. Its black guilloche dial, adorned with Roman numeral indexes, exudes sophistication and refinement. The stainless steel case, measuring 39mm in diameter, is perfectly proportioned for both formal and casual wear. A sapphire crystal enhances its beauty while providing exceptional durability. At the heart of this timepiece lies the Longines caliber L651, an automatic chronograph movement renowned for accuracy and reliability. Its 42-hour power reserve ensures seamless timekeeping, even when not worn for a couple of days. The watch's chronograph functionality is both practical and user-friendly, featuring two subdials for small seconds and minute counter. With a water resistance of 30 meters, it's perfect for everyday wear but not suitable for swimming or diving. A stainless steel bracelet complements the case beautifully, feeling solid yet comfortable on the wrist. The adjustable clasp ensures a secure fit for various wrist sizes. What truly sets this watch apart is its exceptional functionality and timeless appeal, making it an ideal companion for your daily adventures.
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Key Features

  • Automatic chronograph movement
  • 42-hour power reserve
  • Chronograph functionality with two subdials
  • Sapphire crystal for exceptional durability
  • Adjustable stainless steel bracelet
  • Black guilloche dial with Roman numeral indexes
  • Stainless steel case measuring 39mm in diameter

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection Chronograph
Reference
L2.669.4.51.7
Movement
l651
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
Case
Stainless Steel 39mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] Longines Master Collection l26734786

Longines Master Collection l26734786

Longines - L2.673.4.78.6 · $2,100
A classic piece that blends timeless design with everyday wearability, perfect for both formal and casual occasions.

  • Condition: 9/10 (very well cared for)
  • Movement type: Automatic
  • Complications: Chronograph + day/date
Posted at
May 1, 2026, 11:19 AM
Active
[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 features a modern travel watch design with a stainless steel case and silver barleycorn dial. It includes a world-time city ring, 24-hour scale, and GMT/world-time complication powered by the modified ETA 2824-2 movement.

  • Condition: Excellent
  • Case size: 38.5mm diameter
  • Bracelet length: up to 20cm (8 inches)
  • Movement type: Longines Calibre L635, based on the ETA 2824-2
Posted at
Apr 29, 2026, 9:19 PM
Active