Oris
Classic 01 733 7594 4891-07 6 20 12— lug 20mm
Oris Classic 01 733 7594 4891-07 6 20 12: 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 4891-07 6 20 12The essential strap measurement.
Browse 20mm straps →01 733 7594 4891-07 6 20 12
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 4891-07 6 20 12?
The Oris Classic 01 733 7594 4891-07 6 20 12 features a lug width of 20.00mm, measured as the external distance between the two case lugs. Any compatible strap must respect this millimetric dimension with a tolerance of ±0.2mm maximum.
What strap material is recommended for the 42mm Classic Oris?
For the 42mm stainless steel Classic, we recommend alligator leather with vegetable tanning (which develops natural patina over time), embossed calf leather for formal occasions, FKM rubber for dimensional stability, or NATO straps for practical versatility. Material choice depends on daily usage and personal tactile preferences.
How do I change the strap on my Oris Classic 01 733 7594 4891-07 6 20 12?
Strap replacement requires a dedicated spring bar tool. Insert the tool horizontally into the lateral holes on the case to compress the spring pin; when the pin retracts, remove the old strap. For installation, align the holes inside the new strap with the pin, push the spring pin until you hear a click. We recommend this operation at Atelier Casati Milano to avoid case scratching.
Can I use aftermarket straps from other brands on my Oris Classic?
Yes, provided the strap has a lug width of 20.00mm and compatible spring bars. We recommend verifying construction quality: reinforced lugs, stabilised passants (straps loops), and buckles or deployante clasps manufactured in brushed or stainless steel. A poor-quality strap diminishes the aesthetic balance of an independent watchmaking piece like Oris.
How long does a leather strap last on the Oris Classic?
A full-grain leather strap (alligator or calf) with vegetable tanning lasts approximately 3-4 years under daily use on a 42mm watch, given the case weight. Patina deepens in the first year; visible deterioration begins between 2.5 and 3 years. Periodic maintenance (conditioning with specific cream) extends durability by 6-12 months. FKM rubber straps maintain dimensional integrity for 5-6 years.