Prim · Sport

Strap for Orlík 38 Stainless Steel / Black / Rubber

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

Lug width20 mm
Case diameter38 mm
Reference95-007-487-00-1
FamilySport
MovementPrim caliber PRIM KALIBR 95 hours, minutes, seconds
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 Sport 95-007-487-00-1

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Sport 95-007-487-00-1, seen from the bench

The Prim Sport 95-007-487-00-1 embodies Czech watchmaking heritage, with a stainless steel case of 38mm diameter and 20mm lug width. It features the Prim KALIBR 95 movement, regulating hours, minutes and seconds with the precision characteristic of Czechoslovak calibers. The satin-finished steel case offers a neutral tone compatible with various strap options, while the 38mm size provides balanced dial visibility without dominating the wrist.

Frequently asked questions

What is the lug width of the Prim Sport 95-007-487-00-1?

The lug width is 20mm. This measurement is taken between the lug pins that hold the strap in place on either side of the case. The Prim Sport sits in the intermediate category, making it ideal for versatile straps that maintain proportional balance with the 38mm case diameter.

Which strap is most suitable for the Prim Sport 95-007-487-00-1?

Selection depends on intended use. For formal contexts, a natural alligator strap at 20mm offers superior tactile quality and authentic aging patina. For daily wear, vegetable-tanned calf leather develops character and colour variation over time. For genuine sport application, a heavyweight cotton NATO or structured rubber strap ensures reliability and ease of maintenance.

How do I change the strap on the Prim Sport 95-007-487-00-1?

Remove the lug pins (using a dedicated tool or small screwdriver) that secure the strap to the case lugs. Once extracted, the original strap releases freely. Align the new 20mm strap's holes with the lug pins, then reinsert the pins through the strap material and case. Straightforward operation requiring care to avoid scratching the case finish.

Can I use a third-party compatible strap from another brand?

Yes, any strap with a 20mm lug width is compatible with the Prim Sport 95-007-487-00-1. Verify actual width matches 20mm precisely and that total strap length accommodates your wrist (typically 20-22cm for the final loop). Artisanal straps from specialist manufacturers frequently offer construction quality and material superiority over OEM solutions.

What is the typical lifespan of a leather strap for the Prim Sport 95-007-487-00-1?

Durability varies with leather type and wear patterns. An alligator or vegetable-tanned calf strap under daily use maintains structural integrity for 3–5 years before replacement becomes necessary. A NATO fabric strap typically lasts 5–7 years, with primary wear occurring in the keeper loops. Regular maintenance (cleaning, moisture protection) significantly extends longevity.

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