This is a Bulova Snorkel Blue, Rotating Internal Bezel 200m Diver’s watch, with “Coffin Link” stainless band. It is the Accutron II type with quartz driven resonant structure, yielding a 292kHz oscillator frequency. This produces an incredibly smooth sweep. The original Accutron used an electro-magnetically driven tuning fork to reach that frequency. The Accutron II uses quartz and a torsional resonator to yield one of the most accurate quartz movements available. I have read they are rated in a few seconds per year rather than months, with traditional quartz. This watch is in excellent condition with no marks on case, face or crystal. There are some desk diving marks on the band, but minor. The band has been sized to 7″ wrist, but has all links and pins carefully removed, and present. It has a recent battery installed. It comes with an extra rubber tropic strap that fits. It will be shipped in nice watch box, or the original box. I may or may not have the original box, as I may have misplaced it.