Model/type: Monopusher chronograph.Date: c.1938-40Movement: Manual-winding, Valjoux cal.22Dial: Silvered, multi-scale, outer telemetre scale, inner minute scale, Breguet numeral hour markers, central spiral tachymeter scale ('snail scale'), subsidiary dials for running seconds and chronograph minutes, blued hands, centre chronograph seconds handCase: Stainless steel, fixed plain bezel, single(mono) chronograph pusher, oversized crown, articulated/swing lugs, snap-on caseback, numbered '65401'Strap: Later replacement, generic brown leather, steel tang-buckleSize: 33mmAccompaniments: None