The quartz watch movement transformed the industry however before this was to happen, American watch manufacturer, Bulova introduced technology that could harness accurately the constant vibrations of a tuning fork! Their technology was licensed to Omega and here we have an excellent example of their F300Hz. It's battery driven and when it's running the tuning forks can be heard humming - hence the nick-name. 
 
This is a typical Seamaster style case. Robust with beefy lugs! It's 14k gold capped with some very small marks that reflect its age but is still highly presentable. Genuine Omega crown, possibly not the original. The screw-back case is stainless steel.
 
Superb sun-brushed dial. Polished gold coloured hour batons. Matching hands. Continuous sweep seconds hand. The quick-set date at 3 operated by pulling the crown out one step then rotating to choose the date. This is a technical dial where each second index has five sub-indexes. Genuine reinforced Omega crystal with some scratches. Fully signed Omega.
 
Inside is the Omega 1250 "mosaba" calibre. Made under license from Bulova. This has been fully serviced by a specialist which included new coils.
 
Comes with an excellent quality used leather strap and buckle (non-Omega).
 
Very unusual is to find an F300Hz with its box! This has the extremely rare cardboard outer box which is in excellent condition. The Omega box is complete and also in excellent condition however the plastic part of the hinge is broken. The lid opens and closes as it should but it can be lifted off the hinge attachment. Includes the original product description / operating card.