Longines · Presence

Strap for Presence Automatic 34.5mm Stainless Steel / Black / Bracelet

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter35 mm
ReferenceL4.821.4.52.6 (aka: L48214526)
FamilyPresence
MovementLongines caliber L619.2 hours, minutes, seconds | date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Presence L4.821.4.52.6 (aka: L48214526)

Selected for the 18 mm lug width

All 18 mm straps →

The Presence L4.821.4.52.6 (aka: L48214526), seen from the bench

The Longines Présence L4.821.4.52.6 is a 34.5mm dress watch featuring the L619.2 automatic movement with hours, minutes, seconds and date. The stainless steel 316L case has an 18mm lug width, fixed bezel, anti-reflective sapphire crystal and 50m water resistance. This minimalist design embodies Swiss watchmaking tradition from Saint-Imier, with proportions characteristic of refined European dress watches from the 1960s onwards.

Frequently asked questions

What is the exact lug width of the Longines Présence L4.821.4.52.6?

The Longines Présence L4.821.4.52.6 features an 18mm lug width, allowing for compatibility with all standard 18mm straps in the market—both original Longines and high-quality aftermarket options. To verify compatibility, the strap ends (lugs) must insert smoothly into the case holes whilst remaining stable.

Which strap do you recommend for the Longines Présence L4.821.4.52.6?

For the Présence, we recommend black or dark brown alligator, as its regular grain pattern creates visual harmony with the case's satin-finished steel. If versatility is preferred, black vegetable-tanned calf develops a noble patina over time. For summer wear, taupe or sand-coloured lightweight calf remains an elegant choice. Avoid sporty materials (rubber, technical fabric) that contradict the model's refined DNA.

How do you change the strap on a Longines Présence L4.821.4.52.6?

The strap is replaced using a small lever tool or replacement pin. Gently insert the extractor into the lateral hole (steel spring), pushing the lug pin outward until it releases completely. Repeat on the opposite side. Insert the new strap's lugs into the case holes, ensuring they lock securely in position. Never use screwdrivers or sharp tools that could scratch the case.

Is an aftermarket strap compatible with the Longines Présence L4.821.4.52.6?

Yes, provided the lug width is precisely 18mm. Quality aftermarket straps (alligator, vegetable-tanned calf, shell cordovan) are fully compatible and often offer wider aesthetic choices than original models. We recommend manufacturers specialising in European dress watches, as they better understand the refined proportions of this timepiece.

How long does a leather strap last on the Longines Présence L4.821.4.52.6?

A quality leather strap (alligator, calf, shell cordovan) typically lasts 3–5 years with daily wear, longer if worn occasionally. Lifespan depends on humidity, sun exposure and frequency of use. Vegetable-tanned leather develops a patina, increasing aesthetic appeal. We recommend protecting the strap from salt water and replacing stitching after 18–24 months of intense 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.

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