Longines

Hydroconquest Stainless Steel 41 mm Black

Reference Number :

L3.740.4.56.6

Series : Conquest

Retail: $1,150

(As of: 05/2025)

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 Hydroconquest is your trusty quartz grab-and-go partner for adventure, built like a tank but looking sharp. That 41mm steel case feels solid, not clunky, and laughs off water down to serious depths (30 bar!). The black sunray dial pops, day or night thanks to Super-LumiNova, and the unidirectional bezel is pure dive-tool goodness. It's tough, reliable, looks the business, and just plain works – no winding required. Ready when you are.

DescriptionThis timepiece features a round case constructed from stainless steel, measuring 41.00 mm in diameter and 11.90 mm in thickness. The distance between the lugs is 21 mm, with a total lug-to-lug measurement of 51.10 mm. Protection for the dial is provided by a scratch-resistant sapphire crystal, enhanced with several layers of anti-reflective coating applied to the underside. The case incorporates a screw-down case back and a screw-in crown, contributing to its water resistance rating of 30 bar. A unidirectional rotating bezel is integrated into the design. The total weight of the watch is 185.1 g.

The dial exhibits a sunray black finish, featuring applied Arabic numerals and indexes as hour markers. Time indication is achieved through silvered polished hands, treated with Swiss Super-LumiNova® for visibility. Internally, the watch utilizes a quartz movement, designated as Caliber L157, powered by a RENATA 371 battery. This movement facilitates the display of hours, minutes, seconds, and the date. A notable special function is the End-of-Life (E.O.L.) indicator. The watch is secured to the wrist via a stainless steel bracelet equipped with a double safety folding clasp.

GenderMen

SignaturesLongines

Country of OriginSwitzerland

Case Size41 mm

MovementQuartz

CaliberL157

FunctionsHours, Minutes, Seconds, Date

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSolid

CrownScrew Down