So the topic should be clear. I love Seiko and Grand Seiko Spring Drive watches. I've owned a MM600 SD GMT since 2007 and had a Ti Grand Seiko diver for 5.5 years. I choose to keep the MM600 and trade the GSD a few years ago. I though Seiko would create something to replace theMM600 when the SD Tuna came out but the lack of proper SD hands killed it for me. Feel I need a new SD sport watch but don't see anything recent. Any suggestions?