Bought specifically for my Grand Seiko Snowflake SBGA211. I actually like the widened gap aesthetic between the watch body and curved strap.
The excess / loose leather around the quick release tab hole meant that the contour of the curved leather was interupted by a dog ear of material.
The only way to to remedy this is to make a smaller slit & not the current course gouge to accommodate the easy release tab. Or not have easy release tab at all - but of course that would make the strap less convenient.
I fed this back to Delugs & sure, curved straps are not recommended for the Snowflake case, but that's because the wider gap reveals this flaw. They're responding to my request to exchange the strap for something else, so naturally I don't feel like a satisfied customer - disappointed as I've given them repeat business.
2 stars for this strap, for this case use. Used on a watch case with closer drilled lug holes and the flaw will still be there, just that it won't be so visible.
Great strap and great customer service too, good communication and quick delivery
Great texture and so comfortable. The blue works so well with many watches. Paired it with the Montblanc Heritage, which requires curved lugs. Love it!