Seiko Cal. 4421 - 229

This Spring Drive model from 1975 features a 38mm Hardlex-Coated Steel case. It features a White dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-d65d8d0bca93]

Also known as: Tuna, Panda

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1975

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