There´s always Mr. Pap´s fantastic review:
http://forum.replica-watch.info/vb/...m-Lion-City?highlight=Seamaster+300m+co-axial.
The weak Myota inside stutters (as Fracture says) and the lume is beautiful but it´s the weakest one I had except on quartz-cheapies (You can´t read time at night). Other than that I love everything about it, it´s beautiful, modern meets classic in another way, it´s reliable, most of the time You don´t even see the stutter, Seiko 5´s don´t hack either and it´s a great design that goes with everything. It´s great for swimming, have used it countless times this Summer and will be keeping it.
The Spectre-edition doesn´t tickle me, why a GMT on a dive-watch (and a very little functional one at that), don´t like the big logo at 12 and the seconds hand ball even less, give me an arrow all the time