Seiko Cal. 4470 - 157

This Spring Drive model from 1975 features a 42mm Stainless Steel case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-21a3c39f5b50]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1975

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