Seiko Cal. 5634 - 551

This Hand-Winding model from 1988 features a 40mm PVD Black case. It features a Silver dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-5a8c71d1aaba]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1988

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