Longines · Presence

Strap for Presence 38.5 Quartz PVD Gold / White - Roman / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter39 mm
ReferenceL4.790.2.11.8 (aka: L47902118)
FamilyPresence
MovementLongines caliber L157 hours, seconds, minutes | 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 L4.790.2.11.8 (aka: L47902118)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Presence L4.790.2.11.8 (aka: L47902118), seen from the bench

The Longines Presence L4.790.2.11.8 is a 38.50 mm stainless steel watch with a white dial featuring applied indices and a transparent caseback. It houses the Longines L157 automatic movement with date function and 28,800 vph frequency, offering 30 m water resistance. The 20 mm lug width ensures proportional harmony between case and strap, positioning this model as an everyday companion that balances formal elegance with practical durability without unnecessary complications.

Frequently asked questions

What is the lug width of the Longines Presence L4.790.2.11.8?

The lug width is 20 mm. This measurement is specific to the Presence L4.790.2.11.8 model and determines strap compatibility. To verify, place the watch on a flat surface and measure the distance between the lug pins using a digital calliper. Tolerances within ±0.3 mm are acceptable to ensure proper fitting.

What is the best strap for the Longines Presence L4.790.2.11.8?

The optimal strap depends on your usage patterns and aesthetic preferences. For formal wear, we recommend vegetable-tanned alligator in cognac or dark brown tones, which develops a beautiful patina over time. For everyday versatility, chromium-tanned calf in anthracite grey or chocolate brown is both practical and durable. For casual or sporting environments, woven NATO or vulcanised rubber provides functionality without stylistic compromise.

How do I change the strap on my Longines Presence L4.790.2.11.8?

The process is straightforward and requires only one tool: a spring bar removal tool. Position the watch on a soft surface, insert the tool into the lateral slots of the upper lug to compress the pin, and extract the old strap. Repeat on the opposite side. To install the new strap, align the pins with the lug holes and push until the spring bar clicks into place. Visually verify the seating before wearing the watch.

Can I use an aftermarket strap for the Longines Presence L4.790.2.11.8?

Yes, provided the strap is specifically constructed for 20 mm lug width. Artisanal leather straps of quality (natural leather, hand-finished, precise stitching) offer significant advantages over generic OEM alternatives. Ensure the strap has sufficient flexibility to avoid stressing the lug pins during changes. A quality aftermarket strap can dramatically transform the aesthetic identity of the watch without altering its functionality.

How long does a leather strap last on the Longines Presence L4.790.2.11.8?

Durability depends on material composition, tanning method, and usage intensity. A quality artisanal alligator strap with vegetable tanning typically lasts 5–7 years with daily wear, or longer if rotated with other straps. Chromium-tanned calf exhibits similar longevity, while vegetable-tanned leather ages more visibly (this is patina development, not deterioration). The buckle should be periodically inspected. With proper maintenance—cleaning with a damp cloth and annual conditioning with specialist leather cream—strap lifespan extends considerably.

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