Seiko Cal. 5284 - 634

This Hand-Winding model from 1999 features a 40mm PVD Black case. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-8cb019d76fc3]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1999

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