Seiko Cal. 4488 - 620

The Seiko 4488-620 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-d5e094a290de]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1981

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