Seiko Cal. 4430 - 357

This Quartz model from 1970 features a 37mm Hardlex-Coated Steel case. Powered by the 4430 caliber with 18j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-2d3b2768d6a5]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1970

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