Seiko Cal. 5646 - 790

This Automatic model from 1990 features a 37mm PVD Black case. It features a Black dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-61db024ee8be]

Also known as: Bullhead, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1990

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