Seamaster 300 or Submariner -- which introduced date complication first?

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Between the Omega Seamaster 300 (166.024) versus the Rolex Submariner 1680, which dive watch introduced the date complication first to the consumer market?
 
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If I´m not wrong.. the omega 166.024 was introduced in 1964 and the rolex 1680 in 1968.
 
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1969. But the Seadweller was introduced in 1967
 
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166.024: tested by Comex in 1967, first batch for public was made OCT1968.
So probably SD won the race here...