[padi56]

I have a 1982 5513 thats been consistent +1 a day for the last 20 plus years.And even by todays standards most modern day wristwatch chronometers are by the almost 300 year old 18th century navigational standards imposed on John Harrison H4 watch quite laughably inaccurate .How about just 5 seconds slow after 63 days at sea,in one of the toughest environments known to man, not bad for a almost 300 year old watch.The fact is all Rolex movements over the last 40 years have shown incredible accuracy and longevity of life to be called chronometers.And as long as any movement Rolex or others can perform to a accuracy of around 99.994% to 99.999%. What more could anyone ask from any mechanical watch.