Seiko Cal. 0721 - 391

This Automatic model from 1997 features a 37mm Hardlex-Coated Steel case. It features a Black dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-26a27f5434d6]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1997

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