BLANCPAIN. AN INTERESTING STAINLESS STEEL AUTOMATIC CALENDAR WRISTWATCH Fifty Fathoms, c.1970sBLANCPAIN. AN INTERESTING STAINLESS STEEL AUTOMATIC CALENDAR WRISTWATCHModel: Fifty FathomsDate: c.1970sMovement: 17-jewel Cal.566 automatic, No.631456Dial: Gradient grey, applied polished hour markers with luminous tips, inner rotating bezel, French day and date aperture at 3, red luminous filled handsCase: Cushion form, screw down case backStrap/Bracelet: Black leatherBuckle/Clasp: BuckleSigned: Dial and movementSize: 40mm x 46mmNone