Strap for Aquatimer Automatic 2000 Titanium / Cronotempvs

The lug width of the IWC GST Aquatimer IW3580-03 is 22mm. This is the international standard for large-diameter diving watches (42mm and above) and is compatible with any aftermarket strap of the same width. To verify compatibility, measure the distance between the lugs (the metal mounting points): it must be exactly 22mm.

For a titanium diver of this calibre, we recommend North American or Australian alligator (moisture-resistant with refined aesthetics), or vegetable-tanned calf leather for those seeking a patina that ages over time. For genuine aquatic use, natural rubber or robust NATO fabric straps are ideal. We advise against shell cordovan due to its sensitivity to persistent moisture.

Insert a spring bar tool (small, flat implement) under the lug pin of the case, gently pushing downward to release the pin from the previous strap's passant. Repeat on the opposite side. For the new strap, insert the pin into the passant and press until the locking click is felt. Avoid sharp tools that could scratch the titanium case.

Yes, any strap with a 22mm lug width is compatible with the IW3580-03. The constructive logic is identical: two pins spaced exactly 22mm apart. Ensure the passant thickness (the section embracing the case) is proportionate to the case diameter (45mm), otherwise you will create visual asymmetry.

A vegetable-tanned or alligator leather strap, with moderate use and regular maintenance, lasts 4-7 years. If the watch is used in aquatic environments (swimming pool, sea, gymnasium), durability drops to 2-3 years for non-rubberised leathers. We recommend rotating straps to extend the lifespan of each one.