Strap for Aquatimer Chronograph Stainless Steel / Black / Bracelet

The lug width of the IWC GST Aquatimer IW3767-08 is 22mm. This measurement is determined by calculating the distance between the outer edges of the lugs on either side of the case. It is a fixed characteristic of this model and ensures compatibility exclusively with 22mm straps.

For the GST Aquatimer IW3767-08, we recommend high-quality alligator with vegetable tanning, which reflects the sport-elegant character of the watch, or shell cordovan, which develops extraordinary patina over time. For those prioritising marine use, vegetable-tanned calf leather or a strap with grain texture offer practical choices without aesthetic compromise.

Strap replacement is accomplished using a spring bar removal tool. Position the watch securely, insert the tool into the slot on one of the side pins, gently press inward to release the pin from its internal spring, remove the worn strap and insert the new one, ensuring the pin is firmly anchored in both lugs.

Yes, absolutely. Any 22mm strap is compatible with the GST Aquatimer IW3767-08, provided it respects this exact lug width. We recommend selecting straps crafted from certified quality leather and constructed artisanally, which guarantee durability and aesthetics commensurate with the watch's mass.

The lifespan of a leather strap depends on leather quality and usage patterns. A premium strap with vegetable tanning, used regularly (though not continuously), typically lasts 3–5 years. Shell cordovan tends to last beyond this period, developing increasingly distinctive patina. Frequent exposure to salt water accelerates ageing; therefore, we recommend rotating between straps to extend their service life.