Seiko Cal. 4432 - 906

This Hand-Winding model from 1980 features a 37mm Stainless Steel case. With its 20mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-225540380bb1]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1980

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