Hi Ando
The braclet is a later version of the originally fitted 1171 bracelet. A 1171 from that period should have a trapezoid logo. The dial indicates that this is a late 77 speedy or that the dial has been replaced a a later point in time. This dial has been used up to 1990. You should ask for the serial and movement shots.
This „Q Horizontal Tail“ caseback has been used between 1983 and 1995.
If I would have to guess, I would say this is not a 77 speedy. It is rather from the 80ties. The serial number will tell.
Cheers an good luck with your hunt. My 77 speedy says hi.
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