Longines · Conquest V.H.P.
Strap for Conquest V.H.P. Chronograph 42 PVD / Blue / Bracelet
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Conquest V.H.P. L3.717.2.96.6 (aka: L37172966)
Selected for the 20 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 Conquest V.H.P. L3.717.2.96.6 (aka: L37172966), seen from the bench
Frequently asked questions
What is the lug width of the Longines Conquest V.H.P. L3.717.2.96.6?
The lug width of the Longines Conquest V.H.P. L3.717.2.96.6 is 20mm. This measurement refers to the internal distance between the two insertion points on the case lugs. You can verify this dimension using a digital calliper by inserting it into the space where the strap passes through. The 20mm measurement is the standard for this model and guarantees compatibility with all straps designed for this lug width.
Which strap should I choose for the Longines Conquest V.H.P. L3.717.2.96.6?
For the Longines Conquest V.H.P. L3.717.2.96.6, we recommend alligator straps in brown or black for formal elegance, or vegetable-tanned calf leather for those who appreciate natural patina development over time. For intensive technical use, vulcanised rubber straps offer maximum practicality and resistance to chlorine and salt water. Shell cordovan equine leather represents a sophisticated choice for those seeking premium leather with controlled elasticity. Your choice depends on your usage style: if you wear the chronograph daily in an office environment, opt for formal alligator; if you use it in sports contexts, prefer rubber or robust calf leather.
How do I change the strap on my Longines Conquest V.H.P. L3.717.2.96.6?
Changing the strap on the Longines Conquest V.H.P. L3.717.2.96.6 requires a specific tool: a spring bar tool (lug removal lever). Position the small cone of the lever on one lug spring and press gently downward to compress the spring, thereby extracting the metal pin. Repeat the operation on the other end. Once both springs are freed, the old strap slides out. Insert the new strap into the holes, align the springs, and press until you hear a definitive click. Verify that the springs are completely inserted by checking that they do not protrude from the holes.
Can I use an aftermarket strap on my Longines Conquest V.H.P. L3.717.2.96.6?
Yes, it is absolutely possible to use quality aftermarket straps on the Longines Conquest V.H.P. L3.717.2.96.6, provided they respect the 20mm lug width. Many collectors prefer bespoke artisanal straps made from premium leather, which offer superior aesthetics and greater durability compared to OEM straps. Always verify that the aftermarket strap has correctly sized lug springs (standard 1.5-1.6mm diameter) and that the total width of the keeper is slightly less than the lug width to guarantee smooth insertion without friction.
How long does a leather strap last on a Longines Conquest V.H.P. L3.717.2.96.6?
The lifespan of a premium leather strap depends on intensity of use and tanning type. Quality artisanal alligator or vegetable-tanned calf lasts an average of 3-5 years with daily use, potentially reaching 7-8 years with occasional wear. Shell cordovan is even more durable, resisting up to 10 years. Critical factors include exposure to perspiration, fresh water and salt water, and proper maintenance (periodic cleaning, air drying, annual conditioning). Vulcanised rubber straps have similar durability but require less maintenance. Many collectors seasonally rotate straps to distribute wear.
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
