with calibres-51 for the assam torbillon QP cal-52---cal 49(26mm dia x4.3mm) the round version of the (calibre 42 being (26 x 20.5 x 4.3mm) and 24J) there was a lady watch version cal21 (no not frederic piguet's) being 17.5 x 13.8 x 3.7 mm.lady karree 21-01-05-15-04 case 23.5x24.5x8mm a lovely littl