Longines · Evidenza
Strap for Evidenza 30.5 Chronograph
Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Evidenza L2.156.4.51.2 (aka: L21564512)
Selected for the 16 mm lug width
The Evidenza L2.156.4.51.2 (aka: L21564512), seen from the bench
Frequently asked questions
What is the lug width of the Longines Evidenza L2.156.4.51.2?
The Longines Evidenza L2.156.4.51.2 features integrated lugs measuring 16 millimetres. This is an exceptionally rare specification in contemporary watchmaking, requiring specialist strap manufacturers. Measurement is performed by inserting a calliper into the internal distance between the two lugs, from the base to the point of contact with the case.
Which strap is most suitable for the Evidenza L2.156.4.51.2?
Dark brown alligator (chocolate or dark cognac) represents the most sophisticated choice, as the natural grain complements the satin-brushed finish of the stainless steel case elegantly. Vegetable-tanned calf leather offers a contemporary alternative that develops a natural patina over time. For those prioritising practicality, shell cordovan or vulcanised rubber ensures durability whilst respecting the tonneau architecture.
How is the strap changed on a Longines Evidenza L2.156.4.51.2?
Strap replacement involves unscrewing the spring bars connecting the lugs to the case. This procedure requires specialised tools, such as a spring bar removal tool. If you lack experience, it is advisable to consult a professional watchmaker or contact the Casati Milano atelier directly for personalised assistance via WhatsApp.
Which aftermarket straps are compatible with the Longines Evidenza L2.156.4.51.2?
Any strap with a 16-millimetre lug width is compatible with the Evidenza L2.156.4.51.2. Milano Straps offers a comprehensive collection of artisanal leather straps in various hides (alligator, calf, shell cordovan) and colourways, all customisable in dimensions, initials and stitching thread, with fast shipping and an 18-month warranty.
How long does a leather strap last on a Longines Evidenza L2.156.4.51.2?
Longevity depends on the type of leather and daily usage. Quality alligator or vegetable-tanned calf leather typically lasts 3–5 years with regular maintenance. Shell cordovan, owing to its dense molecular structure, can endure 7–8 years. Casati Milano offers an 18-month warranty covering manufacturing defects.
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

