Gargamel reviews the Sinn EZM4, a vintage-style mission timer chronograph featuring the robust Lemania 5100 caliber, focusing on its utility and design.
The Bell&Ross Space 1 was my first mechanical watch. I now have a Sinn 142ti on bracelet that I will never sell. Here is a link about the watch with a photo of it being worn in space. https://zeitquest.com/watch/sinn-140-142-141-chronograph