Limited Edition of 50 Pieces. Schwarz Etienne Watch Roma Synergy by Kari Voutilainen Limited Edition WROVMA03SSCUBCLTD-A. Kari Voutilainen has three productions facilities, Voutilainen and Cattin, a joint venture based in Le Noirmont, specialising in making cases. Comblemine SA, based in Saint Sulpice, producing high quality dials for an array of companies. Les Ateliers Kari Voutilainen in Motiers. The dials on the Schwarz Etienne ROMA SYNERGY by Kari Voutilainen are engine turned at Motiers after which they are to the Saint Sulpice site. It is within the confines of this building that the dial colours are imparted using galvanic treatment.