Seiko Cal. 4556 - 431

This Hand-Winding model from 1978 features a 44mm PVD Black case. It features a White dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-1dcd6cee97f5]

Also known as: Pogue, Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1978

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