Seiko Cal. 4456 - 277

This Automatic model from 1978 features a 41mm Hardlex-Coated Steel case. It features a Green dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-590e98fdb103]

Also known as: World Timer, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1978

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