The e-Strap features a high-end leather strap that has a carbon fiber texture to it that Montblanc calls “Extreme Montblanc Leather” and is produced by them in Florence, Italy. At the bottom, sitting under your wrist is an electronic module made from DLC (diamond like carbon) coated steel or in gray steel. Apparently, there are a few color and size options.
The e-Strap features a high-end leather strap that has a carbon fiber texture to it that Montblanc calls “Extreme Montblanc Leather” and is produced by them in Florence, Italy. At the bottom, sitting under your wrist is an electronic module made from DLC (diamond like carbon) coated steel or in gray steel. Apparently, there are a few color and size options.