Seiko Cal. 6221 - 638

The Seiko 6221-638 represents an important milestone in Seiko's 1993 lineup. With its 19mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-d28bd8820a77]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1993

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