Seiko Cal. 4430 - 350

This Spring Drive model from 1988 features a 37mm Two-Tone case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-7dae997ecb7a]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1988

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