Check out our superb custom made solid brass movement holder CT503. This is a superb quality precision CNC machined weighty tool. The essential tool every Seiko modder should have on their work bench. Compatible with both the standard and thicker Divers movement spacers. This allows you to work on your movement with confidence whilst replacing dials, hands, day/date wheels etc. The weighty Brass at over 50 GRMS is a distinct advantage over the light 7 GRM plastic versions widely available.