Saw the new JDM Seiko Mechanical and Presage models at Big Time today. All of them are powered by the 6R15 movement.
First, the models from the Mechanical line. I thought these are using the same case as the Alpinist(SARB017) but they are not. They are actually one to two millimetre larger than the Alpinist but do not come with screw in crown. Above is the SARG005.
Here are two Presage models. I have posted the 4R36 version in my previous post.