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'5 Sports Speedtimer Kakume' stainless steel chronograph wristwatch, Ref. 6138-0030
'5 Sports Speedtimer Kakume' stainless steel chronograph wristwatch, Ref. 6138-0030
With day (English/Arabic), date, and chronograph function
Date: 1970s
Serial no.: 655209
Dial: Blue
Movement: Automatic
Case material: Stainless steel
Case size: 42.50 mm
Bracelet/Strap: Stainless steel bracelet, inner circ. 7.75 in
Clasp/Buckle: Deployant clasp
estimate: $800–1,200
result: $756
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A unique feature of the Seiko 6138-0030 is the square hour and minute registers, hence its nickname “kakume,” Japanese for “square eyes.” Together with the 6139 series, this iconic reference was the first fully integrated automatic chronograph featuring column wheels and vertical coupling mechanism.