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

Reference L2.909.4.51.7

About this watch

The Longines Master Collection 40 Moonphase is a stunning timepiece that combines sophistication with practicality. It features a range of complications, including a moon phase indicator and date function, which adds a touch of astronomical beauty to your wrist. The watch boasts a round stainless steel case measuring 40.00 mm in diameter, striking an ideal balance between boldness and wearability. The black guilloché finish on the dial is breathtaking, with intricate patterns creating depth that draws your eye. Roman numeral indexes add a classic touch, while slender 'feuille' hands ensure time is displayed clearly. At the core of this timepiece is the Longines caliber L899.2, an automatic movement that reflects the brand’s commitment to precision. With 21 jewels and a power reserve of 64 hours, you can confidently take it off for a weekend without losing time! The watch includes a moon phase complication at 6 o'clock and date function at 3 o'clock. Complementing the stainless steel case is an alligator leather strap that adds luxury to the watch. With a lug width of 21.00 mm, the watch sits comfortably on your wrist.
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Key Features

  • Round stainless steel case (40mm diameter)
  • Black guilloché finish dial
  • Moon phase indicator at 6 o'clock
  • Date function at 3 o'clock
  • Longines caliber L899.2 automatic movement
  • 21 jewels and 64-hour power reserve
  • Alligator leather strap

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection 40 Moonphase Stainless Steel / Black-Roman / Alligator
Reference
L2.909.4.51.7
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] Lot of three Longines (Conquest, Master Collection, and Spirit) and two NOMOS Glashütte (Club Automat and Metro Neomatik), some with unworn bands, boxes, and papers. Over $16k retail, asking only $6995 for all five watches.

Lot of three Longines (Conquest, Master Collection, and Spirit) and two NOMOS Glashütte (Club Automat and Metro Neomatik), some with unworn bands, boxes, and papers. Over $16k retail, asking only $6995 for all five watches.

A collection of five watches from Longines and NOMOS Glashütte, including the Conquest, Master Collection, Spirit, Club Automat Datum Dunkel, and Metro Neomatik 41 Update.

  • Retail value: $16k
  • Shipping: CONUS shipped
  • Payment methods: Zelle/Venmo preferred, PayPal FF available
Posted at
Dec 7, 2025, 7:25 PM
Active
Longines Master Collection Moonphase L2.673.4.78.3 [WTS]

Longines Master Collection Moonphase L2.673.4.78.3

Longines - L2.673.4.78.3 · $2,100
This is a Longines Master Collection Moonphase watch in the 40mm size, featuring a moonphase display and a full kit with leather strap, links, spring bars, inner box, outer box, manuals, and hang tags.

  • Condition: Near perfect with one small mark near the lugs
  • Size: 40 mm diameter
  • Strap condition: Shows some signs of wear
Posted at
Nov 30, 2025, 11:46 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 · $2,100
This Longines Master Collection Moonphase Chronograph is a 40mm version featuring a Column Wheel, with a box and papers included.

  • Condition: Pre-owned with wear and use
  • Size: 40mm diameter
  • Box condition: Damaged with one flap falling off and taped
  • Papers included: Yes
Posted at
Nov 26, 2025, 11:56 PM
Active