Seiko Cal. 5238 - 644

The Seiko 5238-644 represents an important milestone in Seiko's 1985 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-fefe1e2c739f]

Also known as: Sumo, World Timer

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1985

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