Seiko Cal. 4591 - 439

This Spring Drive model from 1980 features a 36mm PVD Black case. With its 20mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-150cd7b761b6]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1980

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