Girard Perregaux is one the many great Swiss watchmakers that couldn’t get big enough to continue developing in house movements into the 60’s and 70’s.
This is a good example of a mid sixty’s quality watch. Automatic, date, water resistant, shock proof. It also has the rare (for the time) feature of an instant date change (the date changes instantly at midnight rather than over a hour or so). But most of all, this is a chronometer and that puts this watch in a class above most of the rest.
The styling of this watch is not outstanding, in fact quite ordinary but the GP does have a reputation for being conservative.
The GP32 calibre is based on the manual wind calibre AS 1687/1688. and was a joint development between Doxa, Eberhard, Favre-Leuba, Girard-Perregaux, and Zodiac.