Seiko Cal. 5639 - 814

This Spring Drive model from 1990 features a 39mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-644167de308a]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1990

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