Longines HydroConquest Automatic 39mm Sunray Blue Dial Steel Men's Watch L37804966

The Longines HydroConquest 39mm Blue Dial Steel Men's Watch L37804966 is Longines' modern dive watch — ISO-certified water resistance with sport-luxury proportions, in a 39mm stainless steel case. A blue dial paired with Longines' Swiss automatic movement makes this an authentic, brand-new piece in our INCMAXX collection. The HydroConquest is Longines' contemporary diver, built around a unidirectional rotating bezel, screw-down crown and 300-meter water resistance. ISO-certified for true diving use.

Reference / SKU	L37804966
Case	39mm × 11mm, stainless steel and ceramic bezel, unidirectional rotating with ceramic insert
Dial	Sunray Blue, with applied arabic numerals and indexes (swiss super-luminova)
Movement	Longines Automatic (Caliber L888), 25200 vph, 72 hours power reserve
Bracelet / Strap	Stainless Steel Bracelet
Water resistance	300 meters

Authentic Longines, brand-new with original box and papers. Free US shipping, 2-year INCMAXX warranty, 30-day returns. Browse more Longines watches at INCMAXX.

Is the HydroConquest a real dive watch? Yes — the HydroConquest is ISO 6425-certified for diving with 300 meters of water resistance, a unidirectional bezel for tracking dive time, and a screw-down crown. It's a serious diver dressed in sport-luxury styling.

What movement is inside? A Longines Swiss automatic movement — self-winding, mechanical, and built for daily-wear precision. No battery required as long as you wear it regularly.

Does the 39mm size wear well day-to-day? Yes — at 39mm this is a comfortable everyday size, suitable for most wrist sizes and easy to wear with formal or casual attire.

What comes with the watch when I buy from INCMAXX? Your watch ships in the original Longines box with the appropriate documentation, plus INCMAXX's 2-year authenticity-backed warranty, secure insured shipping and our 30-day return policy. Every piece is inspected by our team before it leaves our facility so it arrives ready to wear.