Seiko Cal. 6377 - 229

This Spring Drive model from 1976 features a 39mm Two-Tone case. With its 21mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-8bd3dacdb013]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1976

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