A leather cuff to which is integrated a very geometric metal piece. On this piece attaches and detaches the R40 pocket watch. The concept of the R100 modular watch is simple in use, and powerful in its stance, between watchmaking and fashion, between past and future. Automatic skeletonized movement, 40-hour power reserve Mineral glass, anti-reflective treatment Case 40mm stainless steel, matt black PVD Dial metal, matt black PVD Hands steel, black PVD Genuine leather cuff, steel metal parts Water resistance 3 ATM Watch guaranteed for 2 years PVD: treatment used to colour the steel The modular watch 1 - Push on the back of the watch 2 - Reattach the back cover to the watch The pocket watch is then worn with a chain, in the pocket or around the neck. Made in France Designer ID: R40C-06/R100S-01-L