27+ Omega Style Deployant Clasp US. It's not the cheapest, but i'll only have to buy the expensive clasp once, and can replace the relatively (compared to omega) cheap straps as i need to. I have one, model 94521883.
wts reduced blue/silver lorier falcon v2 full kit.
Omega speedmaster deployant clasp 94521873 & 20mm cwz004531 aston martin strap buy: O94521883 featured watches omega seamaster planet ocean (cal. They are well made and beautiful, one of the best in the business. The omega speedmaster is one of my favorite watches to style.