Strap for Oris Aquis 01 733 7787 4138

The lug width of the Oris Aquis 01 733 7787 4138 is 22 millimetres. This dimension must be verified with a digital calliper positioned perpendicularly between the case lugs, without forcing. A strap with incorrect lug width will not mount properly and will create undesirable aesthetic gaps between case and strap.

For a diver tool such as the Aquis, selection depends on intended use. If you will submerge the watch frequently, vulcanised rubber offers absolute resistance to moisture and salt corrosion. For mixed daily use, a premium NATO eliminates moisture absorption entirely. A vegetable-tanned leather strap represents the aesthetic choice for those alternating formal and recreational contexts, developing unique patina over time.

Position the watch on a soft cloth. Use a spring bar removal tool to compress the elastic pin (spring bar) on the lug. Maintain pressure whilst withdrawing the old strap laterally. Insert the new strap aligning the passant hole with the elastic pin, then press until the locking click is felt. Verify the strap is locked on both sides before wearing the watch.

Yes, provided the lug width is 22 millimetres. However, construction quality varies significantly between manufacturers. Artisanal straps produced using traditional methodologies (vegetable tanning, hand-stitching) guarantee superior longevity compared to economical industrial straps. Milano Straps supplies 22mm-compatible straps selected for structural integrity and aesthetic proportioning to the Aquis calibre.

A vegetable-tanned calf strap subjected to frequent submersion has reduced durability: typically 18–24 months with intermittent use and immediate rinsing. However, leather absorbs residual moisture accelerating fibre oxidation and degradation. For watches used in salt water, we recommend alternating the leather strap with a NATO or rubber option, preserving leather for dry contexts. A shell cordovan strap offers marginally superior resistance due to natural fibre density, but remains secondary to rubber and NATO for intensive marine use.