Longines · HydroConquest
Strap for Hydroconquest Chronograph
Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the HydroConquest L3.673.4.76.2 (aka: L36734762)
Selected for the 22 mm lug width · workshop selection
Vintage Black Calfskin Leather Strap€80
Hammered Calfskin Strap Light Blue€98
Hammered Calfskin Watch Strap Green with Ecru Stitching€98
Vintage Olive Green Calf Leather Watch Strap€80
Hammered Black Calfskin Strap — Ecru Stitching€98
The HydroConquest L3.673.4.76.2 (aka: L36734762), seen from the bench
Frequently asked questions
What is the lug width of the Longines HydroConquest L3.673.4.76.2?
The lug width (also known as ansa width) of the Longines HydroConquest L3.673.4.76.2 is 22 millimetres. This parameter is measured as the internal distance between the two lugs on the watch case. For proper strap fitting, ensure you use straps certified for 22mm lug width.
Which strap do you recommend for the Longines HydroConquest L3.673.4.76.2?
The best strap depends on intended use. For formal elegance, we recommend vegetable-tanned alligator in dark havana colour; for recreational diving, English veal treated with hydrophobic agent; for serious underwater operations, black FKM rubber; for daily versatility, NATO in heavy twill or canvas. Milanostraps offers personalised 22mm straps in every material option.
How do you change the strap on the Longines HydroConquest L3.673.4.76.2?
Position the watch on a soft pad and access the side pins with a spring bar tool. Gently push the pin inward to release it from the upper lug, remove the old strap, align the new strap's holes with the lugs, and reset the pin until you hear a click. The operation takes just a few minutes.
Is an aftermarket 22mm strap compatible with the Longines HydroConquest L3.673.4.76.2?
Yes, any strap certified for 22mm lug width is fully compatible with the L3.673.4.76.2. Milanostraps offers an extensive range of 22mm straps in alligator, veal, NATO, and rubber, customisable to individual preferences.
How long does a leather strap last on the Longines HydroConquest L3.673.4.76.2?
Durability depends on material and usage intensity. Vegetable-tanned alligator lasts 3–5 years with moderate daily wear; structured veal resists 2–4 years; rubber maintains elastomeric integrity for 5–7 years. Casati Milano guarantees its bespoke straps for 18 months.
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
