Seiko Cal. 4556 - 850

This Spring Drive model from 1977 features a 44mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-a73662f62027]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1977

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