Is this a 7077 Speedmaster Clasp?

Hoping that some of the experts can shed some light on this. I recently picked up a 168.015 Connie and it came on a BoR that has this short clasp (see photos). My research reveals that it may be a 7077 Speedmaster clasp, but the BoR link on the blade end doesn’t match up to the flat link that came with the Speedy. Any help would be greatly appreciated. Thanks in advance. Mike