VR31 SII Watch Movement Chrono, 3 hands (110/65/20): hour/minute/second, 3 indicators (21): 24 Hours @ 3, 60 seconds @ 6, 30 minutes @ 9, total height 6.25 mm, stem 351-177, cell 371.S. Epson VR31 is 13 ½ ligne, 30.60 mm (dia.) and has a of height 3.97 mm