Polar Explorer II 16570 no etched crown??

[T. Ferguson]

Originally Posted by Monsta

The little sideways s in the crown does it mean serviced ? I thought I remember reading that's what it meant not sure though.

Specifically it's a service crystal installed by the RSC. But if the watch came in for a broken/cracked crystal, chances are very good they would have recommended a full service to make sure there was no broken bits in the movement.