Seiko Cal. 5663 - 301

This Spring Drive model from 1974 features a 35mm Two-Tone case. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-5715418accca]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1974

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