Best straps for the IWC Pilot's Watch Mark XVIII

20 mm lugs, 40 mm case, reference IW327001. Try a strap below; the drawing is to scale.

IWC Pilot's Watch Mark XVIII on a dark brown leather strap

Watch

Strap

Colour: Dark brown

Strap width20 mm

At the buckle18 mm

Lug to lug (est.)47 mm

Your wrist (cm), for strap length

Looks that work on the IWC Pilot's Watch Mark XVIII

The IWC Pilot's Watch Mark XVIII takes 20 mm straps: its lug width is 20 mm. A leather strap will usually taper to 18 mm at the buckle.

The case is 40 mm across, and about 47 mm from lug tip to lug tip.

Good options are a black leather strap, a taupe suede strap, a steel mesh bracelet. Try them all on the drawing above.

Sizes come from published specs. Check yours before you buy: how to measure lug width.