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Oris · Classic

Strap for Classic Date 42 Stainless Steel / Silver

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

Lug width

20mm
20 mm strapsAll Oris
Lug width20 mm
Case diameter42 mm
Reference01 733 7594 4031-07 5 20 12
FamilyClassic
MovementOris caliber Oris 733 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

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The Classic 01 733 7594 4031-07 5 20 12, seen from the bench

The Oris Classic reference 01 733 7594 4031-07 5 20 12 is equipped with the automatic Oris 733 caliber with hour, minute, second and date indication. The watch features 20mm lugs for the strap. The movement offers essential functions for daily use with an automatic winding mechanism.

Frequently asked questions

What is the lug width of the Oris Classic 01 733 7594 4031-07 5 20 12?

The lug width is 20mm. This measurement is critical for compatibility: straps must be constructed specifically for 20mm lugs to ensure proper insertion into the case lugs and optimal comfort during wear.

Which strap is recommended for the Oris Classic 01 733 7594 4031-07 5 20 12?

It depends on use case. For formal or business contexts, an alligator or vegetable-tanned calf strap fully reflects the classical identity. For sports or daily use, a NATO or FKM rubber offers greater durability and practicality. What matters is selecting thicknesses and finishes that do not exceed the case's sobriety.

How do I change the strap on this watch?

The Oris Classic features fixed lugs, not quick-change cases. The procedure requires a spring bar tool to gently extract the elastic pins from the lugs and reposition the new strap. If you lack experience, it is advisable to entrust the task to a professional watchmaker.

Is an aftermarket strap compatible with the Oris Classic 01 733 7594 4031-07 5 20 12?

Yes, provided it is constructed for 20mm lugs. Artisanal straps from specialist suppliers often guarantee construction quality superior to OEM straps, with the possibility of aesthetic and functional customisation. Always verify the lug width specification before purchase.

How long does a leather strap last on this watch?

A vegetable-tanned calf strap withstands 3-5 years with moderate daily use. Durability depends on frequency of wear, ambient humidity, and maintenance. Monthly treatment with natural creams significantly extends service life. Alligator offers greater longevity due to skin structure, while NATO offers practically unlimited durability.

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