Introducing the CT700 Starter Pack! This starter pack was created due to a massive amount of requests for a beginning modder to get started in the modding space. Our team has put together one of the most popular combinations of parts to get you started on your modding journey. The case back with this set is for the 7s26 oem movement with black spacer if you are fitting an NH movement we can swap out the back for the CT231 simply add a note to your order. Happy Modding #seikomodsfamily!