I've been looking around the back catalogue of omega watches and spotted something.

The old Broad Arrow Speedmaster (3551) models had a five-part link Speedmaster bracelet that had a Planet Ocean style curve to the top surface (the older Broad Arrow model had a straight bracelet).

Does anyone know if that bracelet fits the 42mm 2500 Planet Ocean? It'd be a nice addition to the strap/bracelet collection of it does.