This is an uncommon watch to say the least.

Vintage diver style watch that is stylish and gives off a distinctive retro vibe, as a watch from the 1960s-70s should.

I cannot find out much about this model or the Charles Bonnet brand, but a nearly identical one is selling on Sotheby's for $1,200 (see screenshot in pictures and see https://www.sothebys.com/en/buy/pdp/luxury/watches/watch/_vintage-scuba-ufo-a-stainless-steel-manual-winding-wristwatch-with-date-db65)

This watch was professionally serviced and refurbished by Timekeepers in Barrington, Illinois with a new stem and crown and new mainspring. Running well and keeping accurate time.

Bezel is bi-directional. UFO style case and aftermarket perlon band (not original).

While this is a diver style watch, it has not been tested and I would suggest not taking a vintage watch in the water.

Case: 42mm

Lug width: 20mm