Strap for Pilot's Watch Chronograph Rose Gold / Black / Strap

The lug width of the IWC Pilot IW3717-13 is 21mm. This measurement defines the compatibility with aftermarket straps and represents the distance between the attachment pins. Measuring your lug width means verifying the distance between the two holes on the case: 21mm is the exact space where the strap must fit without forcing.

For the IW3717-13 in rose gold, we recommend alligator leather in cognac or dark brown, which naturally complements the warmth of the precious case. Alternatively, shell cordovan in red-burgundy for those who appreciate a rich patina and texture that evolves over time, or calf leather with vegetable tanning for a more versatile approach. Avoid synthetic straps: rose gold deserves materials that age gracefully.

Changing the strap requires two tools: a spring bar tool (specific screwdriver for the attachment pins) and a clean work surface. Insert the screwdriver under the spring of the pin from one side, lift gently until the pin is released, extract it, position the new strap on the attachments and reinsert the pin until it clicks into place. We recommend this operation by a professional if you lack experience.

Yes, any strap with a 21mm lug width is mechanically compatible with the IW3717-13. Mechanical compatibility is guaranteed by the 21mm width; aesthetic compatibility depends on the material, colour and finish you choose. Milano Straps offers a selection of 21mm straps customisable in measurements and stitching details, plus personalised consultation.

The lifespan of a quality leather strap (alligator, cordovan, vegetable-tanned calf) ranges from 3 to 7 years, depending on the material, frequency of use and maintenance. Alligator tends to last longer thanks to its compact fibre; cordovan develops a patina but remains robust; vegetable-tanned calf requires some care but offers comparable longevity. Milano Straps straps are guaranteed for 18 months and can be regenerated or replaced.