[ultarior]

вот что-то нагуглилось

BRIEF INFORMATION ABOUT TEGROV WATCHES

Perrin, Charles is also a brand name or model name used by, Werner Schaub, Tegrov Watch, Tennekin. He was also involved with Fabrique D'Horlogerie Tenniken. Werner Schaub bought the Groflin factory to produce deluxe watches sold under the Charles Perrin name.

Tegrov was listed as a brand of Groflin in 1951 and 1966 and were associated with Roskopf watches and pin levers. Most of Tegrov used 17 jewels calibre EB suplied by Roskopf.

Tegrov (aka 'von Tegrov') was a fairly generic Swiss brand in the 1960s-70s. That have been a claims of a Russian connection, but they are entirely spurious. Researched found that there were Sicura or Sorna link as they seem to favour the same extreme funky multi-function thing.

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