This is a new upgraded build of the Casio F105. I purchased this new as a complete build, and did not do any modding myself. Just received this last week. Paid $200 for it from SKXMOD. This is the Casio F105 module in a first class build that it deserves. Full stainless steel case and bracelet with hardened coating. SAPPHIRE CRYSTAL. Solid bracelet links, with screw pins for sizing. Milled clasp. Comes with extra set of screws for the backplate, and extra rubber seals for when then battery needs changed, but this is a module that has a 10-year battery life, so this won’t need done often. Asking $150 and I will ship for FREE in the US.