Seiko Cal. 4577 - 426

The Seiko 4577-426 represents an important milestone in Seiko's 1978 lineup. It features a Cream dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-f068e98f07ca]

Also known as: Monster, Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1978

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