Longines

Stainless Steel Automatic 40 mm Blue

Reference Number :

L3.810.4.93.6

Series : Spirit

Retail: $2,350

(As of: 06/2025)

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 isn't just a watch; it's a co-pilot for your life's adventures. The sunray blue dial, reminiscent of a clear sky at altitude, is perfectly legible thanks to those bold, lumed numerals. Its sturdy 40mm steel case feels solid, not clunky, and houses a high-tech automatic L888.4 movement with a weekend-proof 72-hour power reserve. From the screw-down crown to the silicon balance-spring, this piece blends vintage aviation charm with modern reliability. It’s a tool and a treasure, ready for takeoff.

DescriptionThe timepiece is constructed from stainless steel, featuring a round case with a primary diameter of 40.00 mm and an overall thickness of 12.20 mm. The lug-to-lug dimension is specified at 49.70 mm, with an inner lug distance of 21 mm for strap or bracelet fitment. Protection for the dial is provided by a scratch-resistant sapphire crystal, which incorporates several layers of anti-reflective coating on both its upper and lower surfaces. Water resistance is rated to 10 bar, a capability functionally supported by the integration of a screw-in crown. The total mass of the assembled watch is 142.4 grams.

The dial is finished in sunray blue, presenting the time with applied Arabic numerals and silvered sandblasted hands. For enhanced legibility in low-light conditions, components are treated with Swiss Super-LumiNova®. Powering the watch is the Caliber L888.4, a self-winding mechanical movement. This automatic system operates at a frequency of 25,200 vibrations per hour and integrates a monocrystalline silicon balance-spring, delivering a power reserve of up to 72 hours. The movement provides functions for hours, minutes, seconds, and a date complication. The stainless steel bracelet is secured by a triple safety folding clasp equipped with a push-piece opening mechanism.

GenderMen

SignaturesLongines

Country of OriginSwitzerland

Case Size40 mm

MovementAutomatic

CaliberL888.4

FunctionsHours, Minutes, Seconds, Date

Power Reserve72 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSolid