Seiko Cal. 6621 - 675

This Hand-Winding model from 1991 features a 39mm Hardlex-Coated Steel case. Powered by the 6621 caliber with 22j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-12ec245c56d7]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1991

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