Longines Master Collection Master Collection 40 Moonphase Stainless Steel / Black-Roman / Bracelet

Reference L2.909.4.51.6

About this watch

The Longines Master Collection 40 Moonphase, model L2.909.4.51.6, is a masterpiece of luxury watchmaking. This elegant timepiece boasts a classic design with a black guilloché dial adorned with Roman numerals, exuding timeless appeal. The round stainless steel case (40mm diameter) and sleek design make it versatile for various occasions. At its heart beats the self-winding Longines caliber L899.2 movement, featuring a moon phase indicator and date function. This automatic movement is based on the reliable ETA A31.L91, with a frequency of 25,200 vibrations per hour and a power reserve of 64 hours. The watch's durability is ensured by its stainless steel case, resistant to corrosion and scratching. Protected by sapphire crystal, the stunning guilloché dial remains vibrant and clear. The comfortable stainless steel bracelet features a deployment clasp, adding an extra layer of sophistication. With a water resistance rating of 30 meters, this watch is suitable for light splashes but not designed for aquatic adventures. The Longines Master Collection 40 Moonphase is an investment in style and craftsmanship, available at authorized retailers or luxury boutiques.
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Key Features

  • Black guilloché dial with Roman numerals
  • Self-winding Longines caliber L899.2 movement
  • Moon phase indicator and date function
  • Stainless steel case (40mm diameter)
  • Sapphire crystal protection
  • Comfortable stainless steel bracelet with deployment clasp
  • 30 meters water resistance

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection 40 Moonphase Stainless Steel / Black-Roman / Bracelet
Reference
L2.909.4.51.6
Movement
l899-2
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Moonphase
Case
Stainless Steel 40mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] Longines Master Collection Silver Dial, $1700

Longines Master Collection Silver Dial, $1700

Longines - L2.628.4.78.6 · $1,700
The seller is listing a Longines Master Collection Silver Dial watch, and they are open to a video call pre-purchase to build trust.

  • Condition: Preowned
  • Shipping cost (usa): 100
  • Payment methods: Wire or Credit Card (+4.9% & 4 days clearance)
  • References: 290+ verified sales on Watcexchange, Instagram (@worthytimeholdings), Google page (Worthytime Holdings), and r/tudor (search u/pacodo)
Posted at
Apr 20, 2026, 11:55 AM
Active
[WTS] 2024 Longines Master Collection Moonphase Chronograph - $2,250

2024 Longines Master Collection Moonphase Chronograph - $2,250

Longines - L2-673-4-78-6 · $2,250
A 2024 Longines Master Collection Chronograph in mint condition, presented as a full kit with a moonphase and chronograph function.

  • Condition: Mint condition
  • Included: Full kit
Posted at
Apr 14, 2026, 11:28 PM
Active