Tact watch

In the late 18th century, Parisian high society took a dim view of anyone taking out his watch to look at the time. For this reason, in 1798 Abraham Louis Breguet invented a pocket watch which allowed people to tell the time by touch. He called it a "tact watch".

Today, tact watches are designed predominantly for the blind.

See the chapter "Watches and clocks / special watches / tact watches" in Worldtempus.

"Hunting-case watch with tactile hour indication" - Abraham-Louis Breguet, Paris - 1800-01. Sold on "3 Messidor, An IX" (22 June 1801) to Lucien Bonaparte (1775-1840), Prince of Canino.

Swiss T 25 (T Swiss made T)