Strap for Pilot's Watch Chronograph Stainless Steel / Le Petit Prince

The lug width of the IWC Pilot IW3777-14 is 21 millimetres. This measurement is the specific standard that IWC adopted for this 43-millimetre case configuration. To verify compatibility, you can measure the currently mounted lug with a digital calliper by extracting it from the lower lug hole.

Alligator in dark brown or blue tones enhances the professional character of the chronograph whilst maintaining sobriety. Alternatively, shell cordovan from vegetable tannage develops a fascinating patina over time. For daily wear, gummed calf offers practicality, whilst grey-steel NATO remains the functional choice without compromise.

The strap is changed by extracting the lug from the case through the lower lug hole, using a dedicated tool or a fine screwdriver tip. Gently press the lug hole to release the lug from the pins, repeat on the other side. Insert the new lug by aligning it with the pins and press until you feel a click.

Yes, numerous aftermarket straps in 21 millimetres are available. Milanostraps.it offers a dedicated collection of straps for 21mm lug width in various materials (alligator, cordovan, calf, rubber) with personalisation options in size, initials and stitching thread.

A quality leather strap (alligator or shell cordovan) typically lasts 4-6 years with daily wear. Longevity depends on sun exposure, humidity and frequency of use. A gummed calf, being treated for water resistance, tends to last slightly longer (6-8 years). Casati Milano straps include an 18-month warranty.