Seiko Cal. 4577 - 285

This Spring Drive model from 1970 features a 39mm Hardlex-Coated Steel case. With its 22mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-b08276d02f3a]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1970

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