some technical oiling documentation :
https://drive.google.com/file/d/1yRpV9PMrH1_tsRpy4Uy798GOECbEy2Vd/view
https://drive.google.com/file/d/1TG-sBANngNl5zJ3xNWj-pNgy1I8UCawS/view
https://drive.google.com/file/d/1yRpV9PMrH1_tsRpy4Uy798GOECbEy2Vd/view
https://drive.google.com/file/d/1TG-sBANngNl5zJ3xNWj-pNgy1I8UCawS/view
but if you have more : just tell me !!
dimensions for : ST1900, ST1902, ST1903, ST1905, ST1908, ST1931, ST1940
(i dont remember where i found them but it was on an official website ... but try "Tianjin seagull watch group Co , Ltd" filetype:pdf ... "faiusr.com" "number" "maer" "Versionumber:" on google or duckduckgo)