Speake-Marin 423811250 Openworked Tourbillon Red Gold 38mmThe new SMA05 v1 Calibre is part of the SMA proprietary movement family and follows the Openworked collection construction approach with a strong element at 1:30: the flying tourbillon. By displaying a Tourbillon cage at 1:30, Speake Marins goal is to break-away from the traditional watchmaking codes: Speake Marin is the only watchmaker who positions its tourbillon there.Limited Edition: 10 pieces