Seiko 7015-6010
Time Sonar Chronograph
The Time Sonar 7015-6010 was a innovative chronograph featuring one of Seiko's first exhibition casebacks with a blue-tinted crystal. It's distinguished by its semi-transparent dial that allowed partial visibility of the day-date wheels underneath. The watch represented a significant technical achievement for Seiko in the early 1970s chronograph market.
Specifications
Movement
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