Seiko Cal. 4430 - 702

This Spring Drive model from 1968 features a 46mm Hardlex-Coated Steel case. With its 18mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-85072070e2b3]

Also known as: Sumo, Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1968

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