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

Reference L2.909.4.51.7

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

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

Current Listings

Longines Master Collection - Retrograde - Silver "barleycorn" dial - Sun and Moon + Moon-phase - 44mm - With Card

Longines - Master Collection Retrograde · $2,500

A highly complicated Longines Master Collection Retrograde watch featuring a silver 'barleycorn' dial and a self-winding mechanical movement. It includes functions such as GMT moonphase, retrograde hands, small seconds, 24-hour second time zone, and a day-night indicator.

Condition: Excellent, works perfectly with no issues
Size: 44mm diameter
Lug width: 22mm
Water resistance: 3 bar

Posted at

Mar 25, 2026, 2:49 PM

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Longines Master Collection L2.773.4.78.3 Moonphase Automatic Box and Papers

Longines - L2.773.4.78.3 · $2,190

The Longines Master Collection L2.773.4.78.3 is an elegant automatic wristwatch featuring a white dial, full calendar display, moonphase display, and running seconds.

Condition: Excellent, with light signs of careful wear on case and crystal
Case size: 42mm
Movement accuracy: +8 seconds per day
Bracelet/strap material: leather

Posted at

Mar 19, 2026, 2:37 PM

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Longines Master Collection - Retrograde - Silver "barleycorn" dial - Sun and Moon + Moon-phase - 44mm - Comes With Card

Longines - Master Collection Retrograde · $2,500

This Longines Master Collection Retrograde features a complex set of functions including GMT Moonphase, Self winding mechanical movement, and retrograde hand displays for day, date, and second time zone. It also includes a moonphase display and day/night indicator.

Condition: Used, works perfectly with no issues
Case Size: 44mm without crown
Lug Width: 22mm
Movement: Self winding mechanical, 28'800 vibrations per hour, 48 hours power reserve

Posted at

Mar 18, 2026, 1:54 PM

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Longines Master Collection L2.708.4.51.6 - $1099 - DHL

Longines - L2.708.4.51.6 · $1,099

This Longines Master Collection features a refined black dial with Roman numeral indices, a power reserve indicator, and a timeless aesthetic.

Condition: Very Good (9.5/10)
Case size: 38.5mm diameter
Material: 316L Stainless Steel
Movement: Automatic Caliber L602.2, 28,800 vibrations per hour, 42 hours power reserve

Posted at

Mar 15, 2026, 3:16 PM

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