Technical details as follows (courtesy of Higuchi Inc):
* Calibre:6R15 Automatic with hand wind function
* SS case/SS Solid bracelet(SBDC001/003)
* SS case/rubber strap(SBDC005)
* 200 Water resist
* Hardlex glass
* Diamater:45mm(with out crown)
* thickness:13.3mm
* Antimag

Got it in a trade and honestly, while it looks and feels fantastic, it is just not getting any wrist time. I keep falling back on my Seiko MM300 and MM1000 Marinemasters. So here it goes! Condition is excellent, rated perhaps 85-90% with double box and papers and hang tags.