Casio Duro MDV-107, White dial, Green insert with silver index/numbers, prototype/test watch, $150 or trade for two standard MDV106/107!

Casio Duro MDV-107, Black pattern dial, Black/black insert,  prototype/test watch, $150 or trade for two standard MDV106/107!

Casio Duro MDV-107, Blue "splash-pattern dial", Blue/red 12h insert,  prototype/test watch, $150 or trade for two standard MDV106/107!

Restored Tissot PR516, ref.44622, new bezel, serviced movement, laser welded case,  serviced movement, $800