Longines, a gold 'Super Solo' doctor's watch, circa 1933, the two silvered dials with hour and

Longines, a gold 'Super Solo' doctor's watch, circa 1933, the two silvered dials with hour and minute hands and seconds hands respectively, the seconds dial traditionally intended to allow a doctor to count a heartrate when used with a stethoscope, within a rectangular gold case, the apertures for each dial bordered with black enamel markers, mounted in 18ct gold to a black fabric strap with original gold deployant clasp, case 4.2 x 2.0 excluding winder, dial and manual winding movement signed Longines, movement numbered 5214065, case numbered 5214083, British import hallmarks, sponsor's mark AB