Seiko Cal. 6331 - 654

The Seiko 6331-654 represents an important milestone in Seiko's 1979 lineup. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-f12bb9ac6e71]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1979

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