Hi Arthur,
...and thanks!
Concerning the material, I really wanted the bracelet and not a leather strap. I really like also the Royal Oak for the design and, for the same reasons, I see the Nautilus only alltogether with its bracelet. Thus leading in looking to the SS versions only.
I didn't have in mind, at all, the issue concerning how SS would be more in phase with the sporty style of this watch, compared with gold. But I guess that, unconsciously, I know that Gold is quite fragile and heavy. This would have made me lean toward a SS material anyway as I'm wearing it as an every day watch.
Are you considering to purchase one in the future ?
Cheers,
Mark