Longines · Legend Diver
Strap for Legend Diver 36 Stainless Steel / Black / Mesh
Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Legend Diver L3.374.4.50.6 (aka: L33744506), seen from the bench
Frequently asked questions
What is the lug width of the Longines Legend Diver L3.374.4.50.6?
The lug width is exactly 19mm. This dimension is specific to this model and remains faithful to the original vintage design heritage. It is essential to verify that any replacement strap has precisely 19mm lug width to ensure proper fit and avoid excessive play at the case attachments.
What is the best strap material for the Longines Legend Diver 36mm?
There is no universal answer; it depends on intended use and personal preference. Alligator leather with vegetable tanning respects the original diving heritage; shell cordovan offers formal elegance and natural patina development; smooth calfskin provides the ideal daily compromise; NATO fabric is functional and iconically vintage. Each material narrates a different chapter of the same watch.
How do I change the strap on a Longines Legend Diver?
The strap is removed using a spring bar removal tool. Insert the flat fork of the tool between the case and the strap end, applying gentle pressure to compress the internal spring mechanism of the pin. Carefully extract the pin from its seat. Repeat on the opposite side. Installation of the new strap follows the reverse procedure. If preferred, Casati Milano atelier performs this service by appointment.
Can I use a quality aftermarket strap on my Longines Legend Diver L3.374.4.50.6?
Absolutely. An artisanal strap crafted from carefully selected natural leathers and constructed with couture-level stitching elevates the tactile and aesthetic experience of the watch. The critical factor is that lug width must be exactly 19mm and construction must be rigorous. Italian artisanal straps offer quality control and personalisation impossible with generic OEM alternatives.
How long does a leather strap last on a daily-wear watch?
Durability depends on material, tanning method and usage intensity. High-quality vegetable-tanned alligator lasts 5-8 years under moderate daily wear; shell cordovan is even more durable, extending to 10 years. Smooth calfskin has an average cycle of 3-5 years. Natural ageing of leather, with visible patina and grain development, is part of the experience. Casati Milano provides 18-month warranty and restoration service for premium 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
