Seiko Cal. 4538 - 228

This Hand-Winding model from 1973 features a 38mm Hardlex-Coated Steel case. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-80f49eeadb0f]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1973

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