Strap for Classic Date 37 Stainless Steel / Silver

The lug width is 18 millimetres. This measurement refers to the distance between the two inner sides of the lugs (the metal shoulders) located at the extremities of the case. To verify it with precision, use a digital calliper positioned between the strap attachment points. The 18mm specification guarantees perfect compatibility with all artisanal straps in the dedicated collection.

There is no single 'best' strap in absolute terms, as the choice depends on intended use and personal preference. For formal contexts, we recommend alligator with vegetable tanning or black calf; for everyday versatile wear, cognac calf or robust cotton NATO; for aquatic and outdoor activities, grey or black FKM rubber. The 18mm lug width ensures balanced proportions in any chosen material.

The process is straightforward: position the watch with the lugs facing upward. Locate the small button or notch on the inner face of each lug (typically at 12 and 6 o'clock positions). Using a dedicated spring bar tool or a rounded knife tip, press the button whilst gently extracting the metal pin (spring bar). Once both pins are removed, the old strap separates cleanly. Insert the new pins through the new strap's holes, reinsert the spring bars, and press until they click into position.

Yes, provided the strap is certified for 18mm lugs. The artisanal straps offered by MilanoStraps.it are engineered for this specific measurement and guarantee full compatibility with your Oris Classic timepiece. Always verify that the lug width declared by the supplier corresponds exactly to 18 millimetres, as even minor variations (17.5mm or 18.5mm) would result in loose attachment or difficult installation.

Longevity depends on material and usage patterns. A vegetable-tanned alligator strap, if maintained regularly (monthly cleaning with a damp cloth, semi-annual conditioning with natural wax), can last 8–15 years. A croute calf strap reaches 5–10 years of serviceable life. A robust cotton NATO strap lasts indefinitely, though the lugs may wear after 4–5 years of daily use. FKM rubber has a lifespan of 5–7 years before losing elasticity. Environmental humidity, wearing frequency, and sun exposure significantly influence these timeframes.