Peter Nesterov was one of the first acrobat pilots in USSR. His name is used by watch company which is specialised in producing a pilot watches. Nothing else is known to me about Nesterov company to me since it's web page is not focusing on revealing any informations about the company.
Nesterov has a nice collection of watches, within it's watches ETA, Ronda, Seiko and Miyota movements are used. I own the watch I-15 with Ronda movement.