Oris · Classic

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

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 8 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

Straps for the Classic 01 733 7719 4373-07 8 20 12

Selected for the 20 mm lug width

All 20 mm straps →

The Classic 01 733 7719 4373-07 8 20 12, seen from the bench

The Oris Classic 01 733 7719 4373-07 8 20 12 is a 42mm stainless steel watch from the Classic collection. It features the Oris 733 calibre with hours, minutes, seconds and date display. The case is constructed in 316L stainless steel with satined and brushed finishes, water-resistant to 100 metres with a sapphire caseback. The 20mm lug width accommodates versatile straps suitable for medium to robust wrists.

Frequently asked questions

What is the lug width of the Oris Classic 01 733 7719 4373-07 8 20 12?

The lug width is 20mm, the standard measurement for wristwatches with a 42mm case diameter. This dimension is critical for selecting compatible straps and ensures versatility across most artisanal leather and textile options available.

Which strap material is best suited for the Oris Classic 01 733 7719 4373-07 8 20 12?

We recommend dark-toned alligator (black, cordovan brown) for formal elegance, vegetable-tanned calf for those seeking natural patina development, nylon or cotton-blend NATO for sporting versatility, and FKM rubber with deployante buckle for marine environments. Material selection depends on your primary watch usage.

How do I change the strap on the Oris Classic?

Use a pin removal tool to gently push out the removable springbars from the case lugs. Position the new strap by aligning its holes with the pins, then reinsert the pins until they click into place. The process takes under five minutes and is fully reversible without modifying the case.

Are aftermarket straps compatible with the Oris Classic 01 733 7719 4373-07 8 20 12?

Yes, provided the lug width is precisely 20mm. Artisanal straps manufactured to this specification fit perfectly onto the removable springbars of the Classic without requiring modifications. Always verify the exact lug width of any strap you purchase.

What is the average lifespan of a leather strap for this watch?

A quality leather strap with vegetable tanning or alligator construction typically lasts 4-6 years with daily wear. Longevity depends on maintenance (drying after humidity exposure), UV exposure, and frequency of use. Leather develops attractive patina over time, improving aesthetically.

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