This superb 4205 Seiko measures 38mm across,

I have enjoyed wearing it and will probably regret parting with it as it is a particularly nice one, I can not see any significant marks anywhere on this watch, the lens and bezel are perfect, 

I do not know about it's history or if it has been modded, I tried to ask it's previous owner about it, all I was told was that it was purchased back in the nineties,

This is a really nice watch on a nearly new Bond striped Nato strap.