Oris · Classic

Strap for Classic Date 42 Stainless Steel - Rose Gold / Grey

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

Lug width20 mm
Case diameter42 mm
Reference01 733 7719 4373-07 5 20 32
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

The Classic 01 733 7719 4373-07 5 20 32, seen from the bench

The Oris Classic 01 733 7719 4373-07 5 20 32 exemplifies contemporary Swiss watchmaking philosophy with a 42mm stainless steel 316L case. Powered by the automatic Oris 733 movement with date function, it features a sapphire caseback, anti-reflective sapphire crystal, and 100-meter water resistance. The 20mm lug width accommodates contemporary wrists without visual imbalance, offering functional design without unnecessary complications.

Frequently asked questions

What is the lug width of the Oris Classic 01 733 7719 4373-07 5 20 32?

The lug width of this Oris model is 20 millimetres. This measurement represents the distance between the two spring bar holes positioned at the base of the case lug. To measure accurately, use a ruler placed perpendicular across the lug: the value must correspond to 20mm to ensure the strap inserts without forcing and maintains correct visual alignment with the case.

Which type of strap is most suitable for the Oris Classic 01 733 7719 4373-07 5 20 32?

For this 42mm Swiss model, we recommend three principal options: an alligator strap with vegetable tanning for formal wear, which emphasises the case elegance; a European calf leather strap of quality grade for daily versatility and aged patina development; finally a NATO canvas strap threaded through robust lugs for sporty-casual use. Selection depends on your predominant environment of use and desired aesthetic tone.

How do I change the strap on my Oris Classic 01 733 7719 4373-07 5 20 32?

Strap replacement involves removing the spring bar—the transverse metal pin—positioned at the base of each lug. Equip yourself with a dedicated tool (spring bar tool) or small flathead screwdriver. Insert the tool into the lateral groove of the spring bar, apply gentle pressure to retract it, then remove it completely. You can now slide the strap out of the lugs. For new strap installation, proceed in reverse order: insert the lugs into the new strap's slots, then reinsert the spring bar into the holes, pressing until an audible click is heard.

Can I use aftermarket straps with my Oris Classic 01 733 7719 4373-07 5 20 32?

Yes, this model accepts aftermarket straps without issues, provided the lug width is precisely 20 millimetres. Quality artisanal straps—such as natural leather with vegetable tanning, shell cordovan, or NATO canvas—are entirely compatible. Using aftermarket straps does not invalidate the original warranty and permits greater aesthetic personalisation compared to the original strap.

How long does a leather strap last on an Oris Classic like the 01 733 7719 4373-07 5 20 32?

A quality natural leather strap—alligator, calf with vegetable tanning, shell cordovan—typically lasts 3-5 years with moderate daily wear (5-6 days weekly). Longevity depends on environmental factors: humidity, prolonged solar exposure, frequent contact with perspiration and water reduce lifespan. Rotating between multiple straps and periodic maintenance (cleaning, light conditioning) significantly extends useful life. Synthetic rubber straps exceed 7-10 years if stored correctly.

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