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Longines · HydroConquest

Strap for Longines HydroConquest L3.644.4.96.6

The Hydroconquest Chronograph takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

22mm
22 mm strapsAll Longines
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Lug width22 mm
Case diameter41 mm
ReferenceL3.644.4.96.6 (aka: L36444966)
FamilyHydroConquest
MovementETA caliber 7750 Hours, Minutes, Small seconds | Date, Day | Chronograph
Year2013
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Standard spring bar · length 22 mm · Ø 1.8 mm double flange · fitted with quick release from the factory (source Longines) · industry standard, no brand part number

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Hydroconquest Chronograph — watch

Straps for the HydroConquest L3.644.4.96.6

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

What I'm asked about the Longines HydroConquest L3.644.4.96.6

What strap size does the Longines HydroConquest L3.644.4.96.6 take?

The Longines HydroConquest L3.644.4.96.6 needs 22 mm between the lugs, usually 18 or 20 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Longines HydroConquest L3.644.4.96.6 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Longines HydroConquest L3.644.4.96.6?

Yes, in 22 mm leather, as long as you don't wear it in the water: leather doesn't like the sea or the pool. For days in the water, rubber. On a 41 mm diver I go for a full-thickness strap, not a thin one.

Which strap do you recommend for the Longines HydroConquest L3.644.4.96.6?

Rubber if you wear it in the water; otherwise a 22 mm calf strap, full thickness. You'll find it ready in the 22 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

For changing the strap

Classic Strap and Bracelet Removal Tooltwo-tip spring bar tool→Milano Straps Premium Swiss Standard Watch Bucklestang buckle, steel or PVD→Leather Conditioner Milano Strapsnourishes and protects the strap→Casati Milano Rectangular Epsom Leather Travel Case — Brownfor the watch and spare straps→

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only

The atelier's website: casatimilano.com