Strap for Aquis GMT 43.5 Stainless Steel / Blue / Rubber

The lug width of the Oris Aquis 01 798 7754 4135-07 4 24 64EB is 22mm. This measurement must be taken between the internal contact points of the lugs on the 43.50mm case, not considering external spacing. Any strap intended for this model must be verified at this precise dimension to ensure correct and stable fit.

The choice depends on intended use: an alligator strap with vegetable tanning offers maritime elegance and natural patina development over time, ideal for mixed professional and daily wear. For frequent diving, a NATO nylon 6.6 strap or FKM rubber provide practicality and salt resistance. A vegetable-tanned calf leather represents the versatile compromise, adapting to any context with an evolving patina.

The Oris Aquis uses spring bars fixed to the lugs. To change the strap, gently depress the internal spring of the bar with a dedicated tool (nylon prong), releasing one end at a time. Insert the bar into the holes of the new strap, aligning the springs within the corresponding grooves. Do not force to avoid damage to the bar or lug: strap change requires millimetre precision.

Yes, all straps manufactured for the 22mm lug width are compatible with the Oris Aquis 01 798 7754 4135-07 4 24 64EB, provided the spring bars are correctly calibrated for this width. Milano Straps artisanal straps are customisable online and tested before shipment. Always verify that the strap explicitly declares 22mm compatibility.

A vegetable-tanned leather strap on a diving watch like the Oris Aquis 01 798 7754 4135-07 4 24 64EB has an average lifespan of 18–24 months with mixed daily use (non-frequent immersion). Salt exposure and humidity reduce durability: for professional diving environments, alternating with NATO or rubber straps is advisable. Patina develops in the first 4–6 months, whilst structural wear begins around month ten.