Seiko Cal. 5633 - 684

This Hand-Winding model from 1970 features a 42mm Gold-Plated case. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-a15db0edb8e7]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1970

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