Introduced in 1960, the Olympus Auto Eye is a fixed – lens rangefinder with shutter priority auto exposure. It features a 45 mm f2.8 lens. Shutter speed is selected on the lens barrel, and metered aperture is shown on a rotating dial inside the viewfinder.
Mine was a last minute steal on a ShopGoodwill.com auction. I paid less than $10. I’ve loaded a roll of HP5 and have an excursion planned for Saturday.
Official Olympus history page
There are only a couple on ebay right now.