Longines Spirit 40mm L3.810.4.73.6
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Reference Number: L3.810.4.73.6
GTIN: 7612356213497

Longines Spirit 40mm L3.810.4.73.6

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Longines Spirit 40mm (L3.810.4.73.6) Watch Review

For almost two centuries, the Longines brand has continually churned out watches that are elegant in design, fashionable, and highly functional. Over two hundred years, professionals in the air, naval, and military field have relied on the Swiss watchmaker's timepieces for accurate and precise timekeeping.

Tapping into that rich historical background, Longines decided to relaunch their Spirit Collection, which was discontinued about a decade ago. Among the newly launched Spirit Collection is the Longines Spirit 40mm Automatic Chronometer watch with serial number L3.810.4.73.6. The new Longines Spirit 40mm takes a cue from pilot's watches and combines that with a contemporary design to produce a masterpiece.

This new chronometer watch is a tribute to the great pioneers who put their trust in Longines over the years. To honor them, Longines ensured that this watch is top-notch, making a timepiece to have for all Longines and Chronograph lovers.


Because of the caliber of professionals who choose Longines, the Swiss watch company always made sure that the watches' materials are top-notch while still always sporting a classic design for all their timepieces.

The round-shaped case of the Spirit 40mm L3.810.4.73.6 is made from durable stainless steel. The choice of material ensures that the watch stays durable over an extended period of use with minimal scratching and little wear. The case is 40mm in width, and it has a mirror-like finish. The crown attached to the case is screwed in to enhance the watch's water resistance capability.

The back case is screwed down, too, with Longines' logo and some of the watch's characteristics etched on it. Sapphire crystal is used in making the glass that covers the case of the Spirit 40mm. The glass comes with several layers of coating on both sides to make it scratch-resistant and anti-reflective.

The case comes with stainless steel, three-link chain bracelet to help strap on the watch. A push-piece, opening mechanism folding clasp is attached to the bracelet for easy strapping and unstrapping of the watch.


When it comes to accuracy, Longines leaves no stone unturned to achieve that precision that is synonymous with its brand. For a watch of this caliber, a great system is required to run it smoothly.

The movement type of the Longines Spirit 40mm L3.810.4.73.6 is automatic. It runs on the Longines L888.4 caliber system. This caliber is 25.60mm in diameter, has 21 jewels, and has a frequency of 25,200. Furthermore, it is a self-winding system with a silicon balance spring and a chronometer that is certified by the Contrôle Officiel Suisse des Chronomètres (COSC)

The movement system's display is analog, and it has an amazing power reserve of 64 hours. Another benefit of this movement system is its high accuracy (-4/+6 seconds a day)


Aside from the quality of material used in making a watch and the watch's design, another key quality most watch lovers look out for is its display. The Longines Spirit 40mm L3.810.4.73.6 doesn't come up short in this department.

Under the protective sapphire crystal glass is a beautiful silver dial, the foundation for the beautiful analog display. Arabic numerals represent hour markers, and they have super-LumiNova to light them up in the dark. The hour and minutes hand are sandblasted, and they also have LumiNova to aid visibility in the night/dark. A sixty-second scale encircles the Arabic numerals, and this can be used for chronograph functions.

Below the twelve o’clock mark is the winged hourglass logo of Longines, and a date window sits at the three o'clock mark. Just above the six o'clock mark is the five-star chronometer symbol of Longines.


Longines Spirit 40mm with serial number L3.810.4.73.6 checks the mark for design and quality. Beyond this, the watch comes with some really cool features that make it worth every dollar spent on it.

One of such functions is water resistance. Designed with a screwed down back casing, a lock-in crown, and a perfectly designed case, the L3.810.4.73.6 stays water-resistant up to 100 meters (10atm). Although it will withstand water splashes and other corrosive liquids without causing any damage, it shouldn't be immersed in water.

On a final note on its functions, the chronometer of this watch is extremely accurate. It is certified by the Contrôle Officiel Suisse des Chronomètres (COSC) – a body that ensures that the precision and accuracy standard of all swiss chronometer is upheld.


You can get the Longines Spirit 40mm (L3.810.4.73.6) at the Exquisite Timepieces store or website for a price of $2,150.

Watch Features

CaseStainless Steel
Case BackSolid
Case Width40mm
CrystalSapphire Crystal
Dial ColorSilver
Dial MarkersArabic Numerals
FunctionsHours, Minutes, Seconds, Date
MovementMechanical Automatic, Caliber L888.4 Chronometer certified by the COSC
Water Resistance100m
Bracelet StrapStainless Steel
Clasp TypeFolding
Warranty5 Year

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