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I've searched and tried to find a thread that captures this, but only saw mention of high-level timeframes. Seiko Diver Production Years | The Watch Site
It's been widely known that the 7548-70XX was in production from early 1978 - 1985 or possibly early 1986 (which was the beginning year of the 7C43-70XX). What isn't known to me, from what I can tell, is what are the earliest and latest production dates of these amazing Quartz divers?
I've heard mention of a watch with a February 1978 serial, but have never seen an actual serial that shows this - if you have one please share.
I have owned several March 1978 7548's and the earliest I've owned and is still in my current collection, is a 7548-700H from March 1978 SN 830871
The latest I've owned (now sold) was a 7548-700F Pepsi from March 1985, if you have a later production from 1985, please share!
Hope to hear what others have out there.
Spoiler alert - here's the summary from the entire thread so far - but keep reading if you want to see how we arrived here.
So far, 700A, 700H, 700B, 700F show early 1978 production (January, February, March, April, May) and 7009, 700F, 7010 are seen in later production 1985 (currently through November with a 700F).
150m black and blue dials were produced for the entire production run 1978-1985 while black and orange 200m dials with screw-down crystal ring cases (701A, 7010) were only produced 1984-1985. Note that it’s been previously documented that 150m and 200m dials were in production at the same time, with examples from both seen 1984-1985.
Earliest production
The Earliest 7548-70XX serial documented here is a 700B blue 150m SQ dial Pepsi from January 1978 serial #811487 (post #27).
Latest production
The Latest 7548-70XX serial documented here is a 700F blue 150m SQ dial Pepsi from November 1985 serial #5N0972 (post #34), the latest 7010 200m dial so far is from July 1985 serial #570203 (post #24).
It's been widely known that the 7548-70XX was in production from early 1978 - 1985 or possibly early 1986 (which was the beginning year of the 7C43-70XX). What isn't known to me, from what I can tell, is what are the earliest and latest production dates of these amazing Quartz divers?
I've heard mention of a watch with a February 1978 serial, but have never seen an actual serial that shows this - if you have one please share.
I have owned several March 1978 7548's and the earliest I've owned and is still in my current collection, is a 7548-700H from March 1978 SN 830871
The latest I've owned (now sold) was a 7548-700F Pepsi from March 1985, if you have a later production from 1985, please share!
Hope to hear what others have out there.
Spoiler alert - here's the summary from the entire thread so far - but keep reading if you want to see how we arrived here.
So far, 700A, 700H, 700B, 700F show early 1978 production (January, February, March, April, May) and 7009, 700F, 7010 are seen in later production 1985 (currently through November with a 700F).
150m black and blue dials were produced for the entire production run 1978-1985 while black and orange 200m dials with screw-down crystal ring cases (701A, 7010) were only produced 1984-1985. Note that it’s been previously documented that 150m and 200m dials were in production at the same time, with examples from both seen 1984-1985.
Earliest production
The Earliest 7548-70XX serial documented here is a 700B blue 150m SQ dial Pepsi from January 1978 serial #811487 (post #27).
Latest production
The Latest 7548-70XX serial documented here is a 700F blue 150m SQ dial Pepsi from November 1985 serial #5N0972 (post #34), the latest 7010 200m dial so far is from July 1985 serial #570203 (post #24).
