Seiko Cal. 6381 - 438

The Seiko 6381-438 represents an important milestone in Seiko's 1984 lineup. With its 21mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-4746aaf6f4f6]

Also known as: UFO, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1984

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