Large vintage Omega diver with screw down “big crown”. A rare watch with lots of character! Original 3,6mm mineral glass crystal (with a couple of scratches), and super intact bezel (acrylic filling). This watch cost as much as the PloProp (Seamaster 600) at the time. The Seamaster f300hz “Chronometer” model dates from 1972. It comes with the original Oyster style 15 linkes Omega bracelet ref. nr. 11 1178/182. Big size for a vintage, and with a very precise electric f300hz movement humming away. Watch the seconds hand glide round the dial-no Quartz hacking here! The movement has Omega caliber 1250 (licensed from Bulova -ESA9162 – Bulova patent). It uses Renata battery 344. The serial number 34637457. Diameter 41,5mm.