Seiko Cal. 4491 - 387

This Hand-Winding model from 1990 features a 45mm PVD Black case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-4f42139e228f]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1990

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