Unique Yema Sous-Marine "Big Eye" chronograph with Valjoux 7733 movement. The watch is in mint condition! The lume is still green and stills lights up in the dark. With this watch you will have a very sought-after collectable object. Yema used to sell watches in the USA under the name Lejour, now that these collectors have discovered the brand from the old world you are assured of a watch that will only increase in value The watch is in mint condition! Please take a careful look at the photos before placing a bid. The Valjoux 7733 mechanical movement runs very well. Has been timed electronically and only deviates a few seconds per 24 hours. The chronograph starts, stops and resets perfectly. It's unknown if or when the watch was last serviced. The case measures 39 x 46 x 13 mm, excluding crown. The strap is 23 cm long Please take a careful look at the photos before placing a bid. This is a used watch and it has signs of wear. The watch will be shipped registered, worldwide. I cannot test how watertight it is, so I cannot guarantee this.