When I was searching my drawers for hands to an old Longines, I found this very nice Gay Freres bamboo bracelet from the late 30ies, and it sat so damn nice on my blackface Omega 23.4 from 1938!
It's 16 mm between lugs on the Omega, so not very broad, no. But as dsio says, surprisingly comfortable to wear. Also, they are for small sized watches from the late 30ies/ early 40ies.
bamboo bracelets are way cool, heres mine on my Cricket as worn by the successful italian 1954 first ascent of K2