Seiko Cal. 4521 - 999

This Hand-Winding model from 1985 features a 39mm Two-Tone case. With its 18mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-470feb5ede46]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1985

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