The seller seems to have researched what his Dad's watch is.If I were to buy off gumtree I'd want to see and buy,rather than send £950 in the hope it arrives,or at least what you expect to arrive.
Could be a nice project..
Seiko Divers Watch Dolphin back 1966 2167/ 8001
https://www.gumtree.com/p/for-sale/s...001/1161397326
(not affiliated with the seller)
The seller seems to have researched what his Dad's watch is.If I were to buy off gumtree I'd want to see and buy,rather than send £950 in the hope it arrives,or at least what you expect to arrive.