Seiko Cal. 4570 - 651

This Hand-Winding model from 1983 features a 44mm PVD Black case. It features a White dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-fe28255a753a]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1983

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