Thank you for the link and suggestion, but the watch has been discontinued and is no longer available from the usual Japanese sources.
Just to check this, about a week ago I wrote to Seiya and got this reply:
'Unfortunately, the requested watch, SCVS013, has been discontinued and all sold out. Not available at other internet shops as well'
I also tried your link and got this reply:
'Thankyou for your request at higuchi-inc
BUT It has been discontinued/nolonger available
We dont carry it ..sorry
very hard to find it on market..'