Yes Grade2 so I hope it holds up under normal wear. Knifemakers like Chris Reeve usually use Grade5 for their handles but that is much harder to machine.Titanium? I tried this one on at an AD and loved it. The weight and feel of the Ti was great.
I tried it next to the regular Pelagos which is a nice sporty piece, thick (gas escape) and with quite a bulky buckle. The 39 is sleek and thin like an old No Date Sub. The bracelet tapers to 16mm if I remember it right and it really feels great in Titanium. Also at night it looks like this