Strap for Classic Date 37 Stainless Steel - Rose Gold / Silver

The Oris Classic 01 733 7578 4361-07 5 18 10 features 18-millimetre lug width. This lug width is specific to this Classic model and should not be confused with other variants in the collection. To verify strap compatibility, measure the distance between the metal lugs: it must be exactly 18mm.

For this model, we recommend vegetable-tanned leather straps (calf in cognac or tan), which develop natural patina in harmony with the case's satin finish. Alligator leather offers superior formal elegance. Cotton NATO straps provide sportive versatility. Shell cordovan is ideal for those seeking a premium option with natural sheen. Rubber straps are perfect for marine environments or casual everyday wear.

To change the strap, obtain a spring bar removal tool or visit a watchmaker. Place the Oris on a soft surface, locate the spring bars beneath the lugs, and gently push them towards the centre with the tool. The spring bars will exit the housings and the strap will detach. Insert the new 18mm strap, aligning it with the lugs, then reposition the spring bars into the lateral holes until they click securely.

Yes, provided it has an 18-millimetre lug width and compatible spring bars. Artisanal aftermarket straps in 18mm fit perfectly on the Oris Classic 01 733 7578 4361-07 5 18 10. Verify that the strap is fitted with appropriate lugs (typically two) and that total length is sufficient for your wrist (minimum 100mm extension recommended).

A quality vegetable-tanned leather strap, worn daily with reasonable use, lasts 3-5 years before requiring replacement or restoration. Natural patina improves over time, but the structure of the leather (particularly lugs and stitching) begins to yield after this period. With occasional maintenance (gentle cleaning, drying after perspiration), longevity can extend further. Alligator and shell cordovan tend to last slightly longer due to denser fibrous structure.