Kisai RPM Acetate Graphite is an update on the original stainless steel version of Kisai RPM watch.
Acetate is a special material used in the production of high end sunglasses and other fahion accessories.
A strong material with a deep gloss that can be cleaned easily, Acetate has a silky finish, similar to ceramic or lacquerware and is light and comfortable to wear, making it ideal for wrist watches.
This photo highlights the interesting nature of the material used. the colors on the case are unique.