Oris
Classic 01 733 7594 4331-07 8 20 63— lug 20mm
Oris Classic 01 733 7594 4331-07 8 20 63: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Oris 01 733 7594 4331-07 8 20 63The essential strap measurement.
Browse 20mm straps →01 733 7594 4331-07 8 20 63
Oris caliber Oris 733 Hours, Minutes, Seconds | Date
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Classic
FAQ
What is the lug width of the Oris Classic 01 733 7594 4331-07 8 20 63?
The lug width is precisely 20mm, measured from the centre of one spring bar attachment point to the centre of the other. Use a digital calliper to verify compatibility with aftermarket straps.
Which strap material is best for the Oris Classic 01 733 7594 4331-07 8 20 63?
Selection depends on intended use: alligator or shell cordovan for formal occasions, vegetable-tanned leather for aesthetic evolution over time, NATO for functional versatility, or FKM rubber for thermal and humidity resistance. All available in 20mm at Milano Straps.
How do I change the strap on the Oris Classic 01 733 7594 4331-07 8 20 63?
Use a spring bar tool: insert the flat end into the lateral openings on the lug, gently compress the internal spring, and extract the pin. Slide out the old strap, position the new one, and reinstate the spring bar under tension.
Are aftermarket straps compatible with the Oris Classic 01 733 7594 4331-07 8 20 63?
Yes, provided they respect the 20mm lug width specification. Milano Straps offers artisanal straps with appropriate spring bars and finishes compatible with the stainless steel case. Proper replacement does not void Oris warranty.
What is the typical lifespan of a leather strap on the Oris Classic 01 733 7594 4331-07 8 20 63?
A quality leather strap (alligator, shell cordovan, calf) typically lasts 3–5 years under moderate daily use with regular maintenance. Longevity depends on climate exposure and frequency of use; gentle care extends the lifespan significantly.