Oris · Rectangular

Strap for Rectangular Date 30 Stainless Steel / Silver - Arabic

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter30 mm
Reference01 583 7657 4061-07 5 21 70FC
FamilyRectangular
MovementOris caliber Oris 583 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 Rectangular 01 583 7657 4061-07 5 21 70FC

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

Frequently asked questions

What is the exact lug width of the Oris Rectangular 01 583 7657 4061-07 5 21 70FC?

The lug width of this Oris model is 21mm, measured from the internal lug bar. This dimension is specifically proportioned for the 30mm case diameter and is critical for ensuring correct and comfortable strap fit on the watch.

Which strap is best suited for the Rectangular Oris?

The Rectangular 01 583 7657 4061-07 5 21 70FC pairs naturally with alligator straps in warm brown tones, calf leather with vegetable tanning, or grey-dark blue NATO straps. For formal contexts, we recommend alligator or vegetable-tanned calf; for travel, NATO; for daily wear, vegetable-tanned calf that ages beautifully. Avoid excessively decorative straps that would compete with the minimalist case geometry.

How do you change straps on this Oris watch?

The 21mm lug bar is accessible from the lateral lugs of the case. Use a spring bar tool to gently compress the internal pin, then extract it without forcing. Insert the new strap by aligning it perfectly with the lug, then reposition the pin until it clicks into place. Ensure the strap is symmetrical and the pin is fully inserted before wearing the watch.

Which aftermarket straps are compatible with the Rectangular Oris 01 583 7657 4061-07 5 21 70FC?

All aftermarket straps with 21mm lug width are compatible with this model. MilanoStraps offers a specialised collection of leather, alligator, NATO and rubber in this size, selected to harmonise with the formal-minimalist style of the Rectangular. Construction quality (well-defined lug bar, precise finishing) is critical for preserving the aesthetic integrity of the rectangular case.

How long does a leather strap last on an Oris Rectangular?

A high-quality leather strap (calf or alligator) lasts 3-5 years with moderate daily use, developing a natural patina that enriches the watch. Ageing is controlled by humidity, frequency of use and maintenance. Vegetable-tanned straps are more durable and age better. NATO and rubber straps last 5-10 years. Regular replacement preserves comfort and safety of 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