Strap for Aquis Carlos Coste Chronograph Limited Edition - Cenote Series

The lug width of the Oris Aquis 01 674 7655 7184-Set is 21mm. This measurement is specific to the oversize models in the Aquis collection and is determined by the geometry of the integrated lugs on the 46mm case. Accurate measurement is essential: place a flexible ruler between the two inner lugs without applying pressure to ensure reliable measurement and proper strap compatibility.

Selection depends on usage and aesthetic preference. For professional diving authenticity, a black or titanium grey rubber strap remains unmatched: waterproof, resistant to marine bacteria, fully compliant with diving requirements. For everyday elegance, deep blue or black alligator leather dialogues beautifully with the ceramic case. For versatility, a two-tone NATO strap allows frequent changes without compromising technical readability. A vegetable-tanned leather strap, conversely, ages narratively, developing patina that amplifies the instrument's authenticity over time.

The integrated lug system requires more careful handling than removable lug designs. Use a quality spring bar tool, inserting the tip into the lug slot and lifting with consistent—never abrupt—pressure. Once the lug is raised, extract the old strap end and thread the new strap through the lug. To prevent scratching the ceramic case, protect it with a soft cloth during the operation. If inexperienced, entrust the task to a professional: integrated lugs do not tolerate handling errors.

Yes, provided the strap is certified for 21mm lug width. However, not all 21mm straps are geometrically identical: width may vary by tenths of a millimetre, lug shape can differ, and attachment quality influences aesthetic stability. High-quality artisanal straps, custom-made with attention to visual proportion, ensure perfect fit and alignment with the watch's technical character. Avoid generic low-cost straps: manufacturing tolerances are wider.

A quality leather strap, even vegetable-tanned, is not ideal for frequent underwater use. Salt water, thermal fluctuations, and constant humidity degrade leather faster than dry daily wear. If the Aquis is destined for regular diving, a rubber strap is the correct construction choice: it lasts years without degradation. If you desire a leather strap for the same watch, use it only for terrestrial activities and alternate with rubber for water use. A well-maintained vegetable-tanned calf strap, under limited water exposure, retains functionality for 2-3 years before replacement becomes necessary.