110. 110Y Tissot. A stainless steel manual wind single button chronograph wristwatch Tissot. Chronographe bracelet mono-poussoir en acier mouvement mécanique Date: Circa 1940 Movement: Jewelled CHRO Cal.33.3 manual wind, No.391 Dial: White, black Arabic numeral hour markers, outer black 1/5th second divisions, subsidiary dials at 3 and 9 for seconds and 30 minute recording, blued steel baton hands, centre chronograph hand Case: Polished round, snap on back, chronograph button to band at 2, No.32658 Strap/Bracelet: Black crocodile leather Buckle/Clasp: Lacking buckle Signed: Dial Size: 38mm