Strap for Pilot's Watch Doppelchronograph Platinum / Blue / German

The lug width of the IWC Pilot IW3713-21 is 21 millimetres. This measurement is essential when selecting a compatible strap: it represents the distance between the lugs on the case where the strap is inserted. Any high-quality strap designed for 21mm lug width watches will fit this model perfectly.

Dark brown alligator is the most aesthetically congruent choice: the natural grain pattern echoes the aeronautical refinement of the Pilot. Alternatively, vegetable-tanned calf offers a natural patina over time, whilst shell cordovan is ideal for those who appreciate conscious ageing. For a more casual approach, a NATO or vulcanised rubber strap preserves the instrumental authenticity of the watch.

The strap is changed by extracting the horizontal pins from the case. Position the watch with the dial facing downward, locate the fixing pins on the sides of the upper and lower lugs, and use a pin remover tool to push the pins outward. Once extracted, the old strap is released. Insert the new strap by aligning the holes with the pins, then reinsert the pins. Ensure the strap is positioned perpendicular to the case before fully tightening the pins.

Yes, you can use any aftermarket strap manufactured for a 21-millimetre lug width. Artisanal leather, rubber or technical material straps designed for this width will fit the case perfectly. The important factor is to verify that the strap is constructed with the same precision as the IWC case, especially regarding hole tolerance and stitching quality.

A high-quality artisanal leather strap, subject to daily wear, has an average lifespan of 3-5 years. Factors such as leather type (alligator tends to last longer than calf), climatic conditions (humidity and heat accelerate deterioration), and frequency of use influence longevity. Vegetable-tanned leather absorbs natural moisture from the wrist and softens over time; shell cordovan is more resistant but requires periodic maintenance. Early replacement at 2-3 years is recommended if the strap is worn daily in humid environments.