Seiko Cal. 6621 - 758

The Seiko 6621-758 represents an important milestone in Seiko's 1971 lineup. Powered by the 6621 caliber with 31j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-0bfd10c01641]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1971

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