I think you are gonna struggle on the depth issue as tall 60cm wide machines tend to be a minimum of 60cm deep. Just checked the A-Z of brands and found zilch I`m afraid.
Whirlpool are about the narrowest at 610mm followed by 623 with AEG, Bosch come in at 650 and Hotpoint a heavyweight 655 mm. The depth quoted includes the “gubbins” as well 😉