Longines

Moonphase Stainless Steel 40 mm Black

Reference Number :

L2.909.4.51.7

Series : Master

Retail: $2,625

(As of: 03/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Longines. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThis Longines Moonphase? Oh, she's a subtle stunner. That "barleycorn" dial texture is mesmerizing, totally classic with those Roman numerals, but not at all stuffy. The 40mm case sits just right, and the self-winding movement with its moon phase is a marvel you can peek at through the back. It's like having a mini-planetarium strapped to your wrist, ticking away with precision. A class act, all around. Timeless style, killer engineering.

DescriptionThe L2.909.4.51.7 model features a circular, stainless steel enclosure with a diameter of 40.00 mm and an 11.10 mm profile. The distance between the lugs measures 21 mm, contributing to an overall lug-to-lug dimension of 47.00 mm, while the timepiece maintains a weight of 85.0 g. A sapphire crystal, treated for scratch resistance, protects the dial, while a transparent case back, also made of the sapphire, reveals the inner mechanisms. The assembly provides 3 bar of water resistance.

The black "barleycorn" dial displays painted Roman numeral hour indices, complemented by silvered sandblasted hands. Timekeeping functions encompass hours, minutes, and seconds. A moon phase indicator is integrated with a subdial that shows the date with the small hand at the 6 o'clock location. Powering these operations is the L899 caliber, an automatic movement operating at a frequency of 25,200 vibrations per hour. The movement offers a maximum power reserve of 72 hours. The attached black alligator strap features triple safety folding, push-piece-activated clasp.

GenderMen

SignaturesLongines

Country of OriginSwitzerland

Case Size40 mm

MovementAutomatic

CaliberL899

FunctionsHours, Minutes, Seconds, Date, Moonphase

Power Reserve72 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSapphire Crystal