Strap for Classic Date 37 Stainless Steel / Black

The Oris Classic 01 733 7578 4054-07 5 18 11 features a lug width of 18 millimetres. This measurement refers to the distance between the horizontal pins connecting the case to the strap attachment points. It is a classic standard that accommodates a wide range of compatible artisanal straps.

For the Oris Classic 01 733 7578 4054-07 5 18 11, a vegetable-tanned leather strap in dark brown or black represents the classical choice for maximum elegance. Alternatively, a dense cotton NATO strap offers everyday versatility, whilst a vulcanised rubber strap provides moisture resistance whilst maintaining visual proportion relative to the 37-millimetre case diameter.

To change the strap, use a spring bar tool (specialised small instrument) to remove the pins connecting the strap to the case. Insert the tool into the small aperture on one of the pins and apply gentle pressure to extract it. Once removed, thread the new strap in the same manner, ensuring the pins are correctly aligned and locked with an audible click.

Yes, any strap with an 18-millimetre lug width is compatible with the Oris Classic 01 733 7578 4054-07 5 18 11. Artisanal straps in leather, alligator, shell cordovan or NATO offer substantial aesthetic personalisation compared to original straps, allowing you to adapt the watch to different usage contexts.

The longevity of a leather strap depends upon the tanning method and intensity of use. A vegetable-tanned strap on an Oris Classic used daily can maintain structural functionality for 3–5 years. However, aesthetic patina deteriorates gradually after the second year, with edge cracking and structural thinning. Regular maintenance (cleaning, conditioning) extends useful life. Rubber or NATO straps exhibit superior durability, lasting 5–7 years, as they do not suffer from atmospheric agents that degrade natural leather.