This is a lovely vintage Omega Seamaster Calendar which dates to 1960. 

The watch has a stainless steel case which measures 34.15mm in diameter excluding the signed Omega crown. This particular case has a very nice chunky 1950's feel but has the raised Hippocampus logo on the rear which earlier models didn't. For its age, the case is in good condition with some light signs of wear. 

The waffle textured dial has an overall ageing to it which has altered the colour slightly. This looks great against the polished stainless steel case giving it a lovely vintage feel. 

The automatic Cal.501 movement is running well and keeping good time for a vintage watch. 

It has a signed Omega crystal which is in very good used condition. It has been fitted with a brand new leather strap with vintage Omega buckle added. To finish it off, it comes in a vintage Omega box.