Seiko Cal. 5231 - 639

The 5231-639 is a sought-after Automatic piece from Seiko's golden era. With its 21mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-8679d360fee6]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1983

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