Tuning Fork Watches

[DanB7290]

I've become intrigued by these, initially took an interest in Bulova, read about their Accutron, but have come across some very reasonably priced Omega F300s which are tempting, as Omega is my holy grail watch. They are quite old but look in reasonably good condition, what's peoples thoughts on them?

[DanB7290]

The one I've found is a Geneve, looks rather fetching with the leather strap. All I have are stainless steel bracelet watches so would be a nice change!