The seams are quite crude in there sealing. Belstaff customer 'experts' don't help for jackets before 1980.
Any help is appreciated.
The logo looks like that kind of era or earlier to me, but the adverts and jackets I found in a quick search didn't seem to match.
John Lofgren Monkey Boots Shinki Horsebuttt - $1,136 The classic monkey boot silhouette in an incredibly rich Shinki russet horse leather.
Grant Stone Diesel Boot Dark Olive Chromexcel - $395 Goodyear welted, Horween Chromexcel, classic good looks.
Schott 568 Vandals Jacket - $1,250 The classic Perfecto motorcycle jacket, in a very special limited-edition Schott double rider style. Logos are not always a good clue of age. Some labels/logos are used across decades and sometimes old logos are re-used after a break.