Strap for Aquis GMT 43.5 Carysfort Reef Limited Edition / Rubber

The lug width is 21mm. This technical specification is crucial for mechanical and aesthetic compatibility with any aftermarket strap. Measurement is straightforward: remove the original strap and measure the distance between the two attachment holes on the case—this dimension corresponds precisely to 21mm.

To enhance the technical maritime character of this model, we recommend an alligator strap with vegetable tanning for formal occasions, a nato textile in navy blue or charcoal grey to maintain its operational aesthetic, or a vulcanised rubber with aggressive pattern for subaqueous environments. Your choice depends on intended use and personal aesthetic preference.

Strap replacement is performed by extracting the spring bars located in the case lugs. Using a dedicated spring bar removal tool, apply lateral pressure to the bar to release it from its housing. Once extracted, the old strap separates easily and the new strap is positioned by aligning its holes with the two pins, then reinserting the bar until it clicks into place.

All straps with 21mm attachment width are compatible. Milano Straps offers a dedicated collection of 21mm straps in vegetable-tanned leather, alligator, nato and rubber. Compatibility is guaranteed by matching lug width; before purchasing, always verify that the strap is specifically manufactured for 21mm to avoid forced stretching or looseness.

A high-quality vegetable-tanned leather strap, subjected to moderate use, maintains structural integrity for 3–5 years. The Aquis, being a diving watch, is subject to salt humidity and climatic variation: periodic maintenance (conditioning with beeswax, cleaning with damp cloth) significantly extends longevity. Rubber and nato textiles offer superior durability in more demanding environments.