Seiko Cal. 4577 - 730

This Automatic model from 1976 features a 40mm PVD Black case. With its 18mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-3f694bf6789d]

Also known as: Turtle, Monster

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1976

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