Longines · HydroConquest
Strap for Longines HydroConquest L3.651.4.16.2
The Hydroconquest Chronograph Tachymeter White Rubber takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width

Straps for the HydroConquest L3.651.4.16.2
Selected for the 21 mm lug width · workshop selection
What I'm asked about the Longines HydroConquest L3.651.4.16.2
What strap size does the Longines HydroConquest L3.651.4.16.2 take?
The Longines HydroConquest L3.651.4.16.2 needs 21 mm between the lugs, usually 18 mm at the buckle. It's the size I've been fitting on it for years.
Can the strap on the Longines HydroConquest L3.651.4.16.2 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 L3.651.4.16.2?
Yes, in 21 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. I don't keep rubber ready in 21 mm: write to me and I'll make it.
Which strap do you recommend for the Longines HydroConquest L3.651.4.16.2?
Rubber if you wear it in the water; otherwise a 21 mm calf strap, full thickness. You'll find it ready in the 21 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
More HydroConquest
More Longines in 21 mm
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- Master Collection Chronograph 40 Stainless Steel / Blue / StrapMaster Collection
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For changing the strap
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





