Longines · Evidenza

Strap for Evidenza 19.6 Diamond Bracelet

Takes 10 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width10 mm
Case diameter20 mm
ReferenceL2.175.0.71.6 (aka: L21750716)
FamilyEvidenza
MovementLongines caliber L178 Hours, Minutes, Small Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Evidenza L2.175.0.71.6 (aka: L21750716), seen from the bench

The Evidenza represents Longines' collection of rectangular-cased watches with a tonneau design. It is equipped with the L178 quartz caliber with hour, minute and small seconds indication. The case features 10mm lugs for the strap.

Frequently asked questions

What is the lug width of the Longines Evidenza L2.175.0.71.6?

The Longines Evidenza L2.175.0.71.6 is fitted with a lug width of 10 millimetres. This exceptionally narrow measurement is a defining characteristic of the model's audaciously elongated tonneau case design. To verify compatibility with an aftermarket strap, measure the internal distance between the two lug attachment points: it must match exactly 10 millimetres. This width is uncommon in the standard market, so we recommend bespoke artisanal straps to ensure optimal fit and functionality.

Which strap is best suited for the Longines Evidenza L2.175.0.71.6?

The ideal strap depends on intended use and personal aesthetic preference. To emphasise the model's geometric and understated character, we recommend dark alligator (chocolate brown or black), which creates an intriguing contrast with the stainless steel case. Vegetable-tanned calf offers a considered option for those desiring a naturally evolving patina over time. Shell cordovan, whilst less common in this width, delivers superior stiffness and progressive brilliance. For robust daily wear, synthetic NATO straps maintain durability without aesthetic compromise. Material selection should dialogue with the Evidenza's Art Décο geometry.

How do you change the strap on a Longines Evidenza L2.175.0.71.6?

Strap replacement requires a specialised tool: a spring bar tool. Position the watch on a clean, flat surface. Use the spring bar tool to gently compress the internal spring of the upper lug, then withdraw the old strap. Repeat for the lower lug. Insert the new strap, aligning the holes with the lugs, and compress the spring until the strap sits flush and the spring returns to position. Perform a final visual check to confirm secure attachment. If inexperienced, we recommend consulting a qualified watchsmith.

Are aftermarket straps compatible with the Longines Evidenza L2.175.0.71.6?

Yes, aftermarket straps are compatible provided they precisely match the 10-millimetre lug width. However, this width is uncommon in the standard market: most manufacturers concentrate on more prevalent sizes (18mm, 20mm, 22mm). For your Longines Evidenza L2.175.0.71.6, we recommend bespoke artisanal straps available in a broad range of materials (alligator, calf, shell cordovan) and customisable to your specifications. Personalised straps ensure perfect fit and superior construction quality compared to standardised alternatives.

What is the lifespan of a leather strap for the Longines Evidenza L2.175.0.71.6?

Strap longevity depends on material, frequency of use, and maintenance applied. Quality alligator with vegetable tanning retains structural integrity for 3–5 years of daily wear; shell cordovan may last 4–6 years owing to its superior fibre density. Calf, being softer, typically exhibits visible wear within 2–3 years, though this transformation constitutes part of its natural patina and imparts character. To extend longevity, avoid prolonged exposure to humidity and direct heat sources; store the strap in a temperature-controlled environment. Bespoke straps from Casati Milano include an 18-month warranty and may be restored or replaced if premature wear occurs.

The next step

The right strap isn't chosen. It is built, together.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only