Seiko Cal. 5291 - 445

This Hand-Winding model from 1969 features a 35mm Hardlex-Coated Steel case. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-b10ded57ab62]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1969

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