Nice watch, vintage Speedmasters rely on details so a few pics might help, Speedmaster 101 which is an accurate guide to price says $8000 - so just over £6k, this is for head only and good condition so with the extras your probabley looking at nearer £7k, if its collector quality then the price shoots up, saying that a relume is a relume and vintage speedy collectors like originality and unpolished cases/original hands.
Get some images up if you can