on the opposite side of the case to the winder.Never seen this before.The crown logo has been etched into the case directly central to the winder.I only had the chance to see it for a few seconds as the guy who owned it was in a hurry to leave.The watch was S/S...OCSC...and had the green hologram still attached to the case-plate.When I say in a "hurry to leave",I mean my local Pub.The Rolie was also a Roman numeral version with a white face so could be a 15200 Date perhaps.I'm SO intrigued,dammit! What do you guys think?.I would appreciate your input.