Strap for Oris Aquis 01 733 7731 4151

The lug width is 19mm, measured from the centre of one spring bar to the centre of the opposite spring bar on the case. This dimension is standard for the 37mm Aquis model in stainless steel and ceramic. Use a digital calliper to verify the measurement before purchasing an aftermarket strap.

Selection depends on intended use: for daily urban wear, vegetable-tanned Tuscan leather offers elegance and develops a natural patina over time. For frequent diving or humid environments, a woven nylon NATO strap ensures rapid drying and chemical resistance. Vulcanised FKM rubber represents the ideal compromise between water resistance and extended comfort.

Use a spring bar tool to gently remove the pins from the lugs. Position the tool in the case groove, lift the pin until the internal spring releases, then slide off the old strap. Insert the new strap by aligning the holes with the pins and press until the locking mechanism engages. For straps with a deployante clasp, verify that the safety mechanism functions correctly.

Yes, provided the width is exactly 19mm. Verify that the strap thickness does not exceed 4–5mm, otherwise friction may occur with the case edge. Straps with a deployante clasp require slightly greater space between the case and lug—consult the seller before purchase.

A quality vegetable-tanned leather strap lasts 3–5 years with moderate daily use. Frequent fresh water exposure shortens longevity to 2–3 years; salt water requires immediate post-immersion cleaning. Regular maintenance—cleaning and conditioning creams—can extend usable life by 2–3 years. Replace the strap when stitching begins to fail or leather becomes brittle.