Glashütte Original

I just got this GO rubber strap for my PC. Fits perfectly and will be a nice sporty option for this unusual piece. ...  

Huge admiration for it!

It has proven to be very reliable and accurate too. My only wish is that the seconds hand reset to zero function was actuated by a button like the Navigator instead of the recessed pusher like the rest of the correctors.

Did the clasp fit to the strap to?

The strap is a standard 20mm lug and 18mm buckle width. It is softer than the very similar IWC tropic on my IWC Vintage Collection Aquatimer.