ALTHOUGH NOT A POCKET WATCH GUY I JUST HAD TO BUY THIS PIECE. ITS AN IWC STEEL PW ELECTRONIC(TUNING FORK) WATCH IN MINTY CONDITION. MAY BE SOMEONE HAS SOME DETAILS ON IT!...
able to open the case back and take pictures on the movement ? if the movement in rectangle shape, then most likely it is Beta 21. what a lovely watch, congrad ~...
should have CEH B21 engraved on plate as well. IWC named the caliber as #2001 and #2002. and they applied Beta 21 on the first version of Da Vinci in 1970.