Seiko Cal. 6284 - 638

The Seiko 6284-638 represents an important milestone in Seiko's 1979 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-2db11ee2760c]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1979

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