Strap matcher

Best straps for the IWC Schaffhausen Mark XI

18 mm lugs, 36 mm case, reference 6B/346 (1948–1984). Try a strap below; the drawing is to scale.

IWC Schaffhausen Mark XI on a dark brown leather strap
Strap
Colour: Dark brown
Strap width18 mm
At the buckle16 mm
Lug to lug44 mm

Looks that work on the IWC Schaffhausen Mark XI

IWC Schaffhausen Mark XI specs

Made
1948–1984
Case
36 mm × 10.5 mm thick
Lug width
18 mm
Lug to lug
44 mm
Case material
stainless steel
Movement
Calibre 89, manual
Nickname
Mark 11

From the maker's published figures, gathered with AI help and not yet checked against a watch in hand. Measure your lugs before you buy.

Strap size for the IWC Schaffhausen Mark XI

What size strap fits the IWC Schaffhausen Mark XI?

The IWC Schaffhausen Mark XI takes 18 mm straps: its lug width is 18 mm. A leather strap will usually taper to 16 mm at the buckle.

How big is the IWC Schaffhausen Mark XI?

The case is 36 mm across, and about 44 mm from lug tip to lug tip.

What strap looks best on the IWC Schaffhausen Mark XI?

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.