Seiko Cal. 5637 - 889

This Quartz model from 1968 features a 38mm Hardlex-Coated Steel case. It features a Cream dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-f99f63e1cc41]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1968

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