SEIKO Speedtimer REF.6139-8020 1970s

SEIKO Speedtimer REF.6139-8020 1970s
Ref Number: 6139-8020
Product status: C/Normal
Year: 1970s
Movement: Automatic, Cal. 6139A
Case material: Steel

Size:
Case Size: 40mm (exclude the crown)
Lug Width: 19mm
Wrist Size: 18.5mm (Max)
Weight: 103.74g

Accessory:
Please look at the photos for reference.

Operation:
The operation has been confirmed. 
The watch is in good working order.

Appearance:
The watch comes with signs of wear.
Please look at the photos for reference.

Restoration:
No.