Strap for Classic Date 37 Stainless Steel / Silver

The lug width is exactly 18 millimetres. This dimension is proportional to the 37mm case and represents a specific Oris design specification. To verify it accurately, measure the distance between the two horizontal pins that held the original strap, or consult the official technical documentation.

Alligator leather represents the most sophisticated choice, creating elegant contrast with the stainless steel case. Vegetable-tanned calf offers progressive patina development over time. For daily versatility, NATO straps provide a robust and practical alternative, whilst FKM rubber guarantees superior moisture resistance.

Gently remove the horizontal pins from the lugs using a dedicated spring bar tool, or consult a qualified watchmaker. Extract the old strap and insert the new one, ensuring the pins are positioned correctly. Verify that the strap is securely fastened before wearing the watch.

Yes, any strap with an 18mm lug width is compatible with the 01 733 7578 4031-07 5 18 10. Compatibility depends solely on lug width: a two-millimetre difference renders the piece incompatible. Always ensure the vendor specifies exactly 18mm.

Longevity depends on usage and material type. A vegetable-tanned calf strap typically lasts 3-5 years with daily wear, whilst alligator can exceed 5-7 years. Exposure to perspiration, sunlight and humidity accelerates ageing. Proper maintenance—periodic cleaning and occasional conditioning—significantly extends lifespan.