The is a type B Flieger-style watch from Wilson Watch Works.

Externally it is in very good condition. Some very minor hairline scratches on the case from maybe 10-15 days of daily wear. I think I can see a tiny hairline on the sapphire crystal between 4 and 5.

This model isn’t on the Wilson Watch Works website anymore. The model is called the Observer. (there is a solid 18k gold version still on the website, this is obviously brushed stainless steel)

42mm case diameter
22mm lug width

The movement is an ETA Unitas 6497/6498 manual wind. ( ETA Unitas Caliber 6497 VS. 6498 Watch Movement | CaliberCorner.com ) These are pocket watch movements that were repurposed to wristwatches when they started to get huge, ie Flieger-type watches. These were/are also used in some Panerai pieces as well.

it can be seen through the display caseback (the rear caseback has not been removed by me)

It keeps solid time, about +2 - +5 seconds per day.

also including the pictures 22mm straps I've never used as they don't fit any other watches I own.

$750 net to me, free shipping in CONUS included.