Mondaine watch helvetica no1 blue marine mh1l1141ld the mondaine helvetica no1 bleu marine features in the light style and is distinguished by an exquisitely matched navy leather strap that has been updated to a light look with tiny stitching for the light collection and with a slightly more paddled detail for the regular the mondaine helvetica no1 light bleu marine model also features a gold plated version which looks stunning against the navy leather strap with polished dimensions in its