Strap for Aquis Date 36.5 Stainless Steel / Aegean Blue / Rubber

The lug width of the Oris Aquis 01 733 7770 4155-07 4 18 65FC is 18mm. This lug width is the standard for the 36.50mm case model and is essential for selecting compatible straps. The measurement should be verified by positioning a digital calliper between the lug terminals at the widest point of the seating area, excluding the caseback and crown.

The best strap depends on intended usage. For daily elegance we recommend alligator of superior quality with vegetable tanning or calf leather in neutral tones (slate, taupe grey). For marine use and sports we recommend FKM rubber straps. For tactical versatility, a NATO strap in cotton dyed indigo. The 18mm lug width requires precise proportions: avoid excessively thick straps that would visually overload the compact model.

Strap change is accomplished by removing the lug terminals using a dedicated cross-pin tool or specialized implement. Position the watch on a soft mat to avoid scratching the brushed steel case. Insert the new strap lug terminals into the new strap, ensuring the keeper adheres uniformly to the lug without lateral play. Verify that the 18mm lug width is respected by the new strap.

Any strap with an 18mm lug width measurement is compatible with the Aquis 01 733 7770 4155-07. Milanostraps offers a curated collection of 18mm straps in leather (alligator, calf, shell cordovan), NATO, and FKM rubber. We recommend verifying strap thickness: for this compact model, straps of 3.5-4mm thickness maintain the original aesthetic.

Leather strap longevity depends on material and usage. Superior quality alligator with vegetable tanning lasts 4-6 years with daily use and proper maintenance (monthly cleaning with mild detergent, natural wax treatment 1-2 times yearly). Calf has similar longevity. Shell cordovan, owing to its structural density, can last 6-8 years. FKM rubber has indefinite longevity but requires keeper replacement every 3-4 years.