Strap for Oris Rectangular 01 561 7657 4034

The lug width of the Rectangular 01 561 7657 4034 is 21 millimetres. This dimension represents the internal distance between the two lugs (spring bar holes) on which the strap is attached. Always verify this measurement using a digital calliper positioned directly between the case lugs, without confusing lug width with strap thickness.

For the Oris Rectangular, an alligator or vegetable-tanned calf leather strap is particularly recommended. Alligator leather, with its natural grain, amplifies the rationalist aesthetic of the rectangular case, whilst vegetable-tanned calf offers softness and develops a fascinating patina over time. For a more contemporary approach, NATO straps in dark tones maintain aesthetic coherence with the Bauhaus design of the model.

Strap replacement on the Rectangular is accomplished by removing the spring bars that connect the strap to the case lugs. Use a dedicated spring bar tool to gently compress the pin and extract it from the housing. Once both pins have been removed from the old strap, insert the new strap through the lower lug and then snap the pin into the upper lug, ensuring it is securely seated. This operation requires care to avoid scratching the stainless steel case.

Yes, absolutely. Aftermarket straps with a 21mm lug width are completely compatible with the Rectangular 01 561 7657 4034, provided the width is exact and the spring bars are correctly dimensioned. Milanostraps offers a wide selection of artisanal 21mm straps, made from alligator, calf, cotton and rubber, all certified for this lug width and available in multiple colours.

The lifespan of a leather strap depends on daily use and tanning quality. An alligator or vegetable-tanned calf strap of excellent quality typically lasts between 3 and 5 years with regular use. Longevity increases significantly if the strap is rotated with others (avoiding uninterrupted daily use) and subjected to periodic maintenance: gentle cleaning, air exposure to prevent persistent moisture, application of natural waxes every 6-12 months. Vegetable-tanned straps develop a fascinating patina with age, improving aesthetically over time.