Seiko Cal. 4577 - 530

This Hand-Winding model from 1975 features a 39mm PVD Black case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-4dffb3094a1e]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1975

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