Solvil et Titus

Solvil et Titus, Genève. Produced in the 1960's.Unusual jump hour, self-winding, water-resistant, tonneau-shaped, stainless steel gentleman's numerical and analogical wristwatch with date, round button chronograph and tachometer. two-body, polished and brushed, screwed-down case back, hooded lugs. brown and satiné blue, on the 11 auxiliary seconds dial, in the middle apertures for the jump hour and the minutes, outer tachometer and the 1/5th second graduation, on the 6, aperture for the date. "Bâton" white chronograph hand.