Oris
Rectangular 01 561 7621 4964-07 5 16 75— lug 16mm

The lug width is 16mm. This non-standard dimension is specific to the Rectangular family and represents the space between the case lugs where the strap attaches. Accurate measurement is essential to ensure a perfect fit without play or misalignment.

The choice depends on intended use and personal style. Vegetable-tanned alligator or calf leather delivers timeless elegance and develops a beautiful patina over years. A fabric NATO strap brings contemporary versatility and tactical appeal. FKM rubber is ideal for aquatic activities and sport, preserving both function and aesthetic integrity.

16mm straps are changed using a spring bar removal tool. Position the tool on the metal pin running through the lug, apply gentle pressure to compress the internal spring, and slide the strap out. Insert the new strap by aligning the pins with the case seats and release. If uncertain, Casati Milano (bespoke atelier by appointment) offers this service with expert guidance.

Yes, provided the lug width is exactly 16mm. Quality aftermarket straps are fully compatible: Milano Straps supplies artisanal leather, NATO and rubber specifically for this width. Choosing reputable brands guarantees durability and comfort equal to original straps.

A vegetable-tanned leather strap typically lasts 3–5 years of daily wear, depending on humidity, perspiration and maintenance. Noble leathers such as alligator and cordovan endure longer (5–10 years). Regular care—cleaning with a damp cloth, air exposure, avoiding prolonged immersion—significantly extends lifespan and enhances aesthetic patina development.