Longines Master Collection Master Collection 40mm Annual Calendar Stainless Steel / Black-Roman / Bracelet

Reference L2.910.4.51.6

Longines Master Collection 40mm Annual Calendar Stainless Steel / Black-Roman / Bracelet

About this watch

The Longines Master Collection L2.910.4.51.6 exudes elegance and sophistication with its striking black dial, adorned with Roman numeral indexes. The classic design seamlessly combines functionality and style, making it a versatile watch suitable for both casual wearers and watch enthusiasts. The stainless steel case is robust and polished, featuring a secure clasp that guarantees a snug fit. The open case back reveals the intricate movement of the Longines caliber L897.2, an automatic mechanism based on the renowned ETA A31.L81. This self-winding movement eliminates the need for battery replacements, a feature that watch enthusiasts adore. The annual calendar function displays the date, month, and provides a practical way to keep track of your schedule. With a 64-hour power reserve and 21 jewels, this timepiece is precise and reliable. Its water resistance of 30 meters makes it perfect for everyday activities. This watch is not just a timekeeper; it's a statement piece that tells more than just time – it tells a story.
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Key Features

  • 40mm stainless steel case
  • Automatic Longines caliber L897.2 movement
  • Annual calendar function
  • 64-hour power reserve
  • 21 jewels
  • 30m water resistance
  • Sapphire crystal glass

Specifications

Brand
Longines
Family
Master Collection
Model
Master Collection 40mm Annual Calendar Stainless Steel / Black-Roman / Bracelet
Reference
L2.910.4.51.6
Movement
l897-2
Movement Features
  • Hours, Minutes, Seconds
  • Date, Annual Calendar, Month
Case
Stainless Steel 40mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS][CA-USA][H] Longines Master Collection Moonphase L2.909.4.78.3 Automatic Watch - $1699

[CA-USA][H] Longines Master Collection Moonphase L2.909.4.78.3 Automatic Watch - $1699

Longines - L2.909.4.78.3 · $1,699
For sale is a Longines Master Collection Moonphase, purchased in May 2025 and barely worn.

  • Condition: hardly used/worn
  • Band material: Brown Alligator Leather
  • Diameter: 40mm diameter
  • Thickness: 11.1mm thickness
Posted at
Jan 2, 2026, 12:06 PM
Active
View listing on r/WatchExchange
[WTS] Longines Master Collection Chronograph 27594783

Longines Master Collection Chronograph 27594783

Longines - 27594783 · $1,800
This Longines Master Collection Chronograph features a chronograph function and is accompanied by its original box and papers.

  • Condition: Very good, with minor dings and scratches
  • Case size: 40mm diameter
  • Water resistance: 30m
Posted at
Dec 31, 2025, 9:49 AM
Active
View listing on r/WatchExchange
[WTS] Longines Master Collection Big Date / Ref. L2.648.4.78.6 / Full Set

Longines Master Collection Big Date / Ref. L2.648.4.78.6 / Full Set

Longines - L2.648.4.78.6 · $1,100
The Longines Master Collection Big Date is an elegant and technically refined watch featuring a stainless steel case, silver dial, and automatic movement with hours, minutes, seconds, and prominent Big Date complication.

  • Condition: Near mint / like-new
  • Case size: 40mm diameter
  • Complications: hours, minutes, seconds, big date
Posted at
Dec 30, 2025, 3:54 AM
Active
View listing on r/WatchExchange
[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

Longines - L2.629.4.78.6 · $1,500
This Longines Master Collection Chronograph features a classic white dial and chronograph function, making it both stylish and practical.

  • Condition: next to new
  • Bracelet size customization: custom 1.5 link for perfect sizing
  • Thickness: 11.7 mm
  • Bracelet thickness: custom 1.5 link (replace two links instead of one)
Posted at
Dec 22, 2025, 4:39 PM
Active
View listing on r/WatchExchange
[WTS] Longines Master Collection Chrono Moonphase 40MM (L2.673.4.78.6), Longines Leather Strap, Additional Straps $2,200 Shipped

Longines Master Collection Chrono Moonphase 40MM (L2.673.4.78.6), Longines Leather Strap, Additional Straps $2,200 Shipped

Longines - L2.673.4.78.6 · $2,200
This Longines Master Collection Chrono Moonphase features a 40MM case with moon phase and chronograph functions. It comes with box, warranty card, and multiple straps.

  • Condition: Pre-owned with minor surface marks
  • Case size: 40mm diameter
  • Straps included: 4
Posted at
Dec 22, 2025, 12:16 PM
Active
View listing on r/WatchExchange