I went a little strap crazy and picked up a GSD strap right after I bought this one.
Very nice color and will even patina more I think. 3-4 mm thick on the non buckle side, about 5mm thick on the buckle side. length, 135mm x 75mm
Comes with tubes. Also at the buckle end, near the lug, the strap is pretty thick, but I could get it on my Shark Diver with a little work and patience.
Shows a little bit of wear at the ends but you won't notice on the wrist.
Price is $65 shipped priority mail with confirmation.