Witaj!! Napisałem do firmy Longines, czekam na odpowiedz,
Poszperałem w necie i znalazłem podobny kaliber 20B.
Pozdrawiam!!
Właśnie mi przysłali maila z taką treścią:
Further to your request, we are pleased to provide the information contained in Longines' handwritten registers:
The original serial number 622'679 identifies a hunter pocket watch in silver. It is fitted with a Longines manually wound mechanical movement, caliber 20E and was invoiced on 20 February 1897 to the company M. L. Rosenblatt, which was at that time our agent for the Russian Empire.