Seiko Cal. 4430 - 434

This Spring Drive model from 1979 features a 37mm Titanium case. With its 20mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-f6bf0484df86]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1979

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