Seiko Cal. 4488 - 389

The Seiko 4488-389 represents an important milestone in Seiko's 1966 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-ddf289d15e08]

Also known as: Sumo, Bellmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1966

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