Seiko Cal. 5231 - 352

The Seiko 5231-352 represents an important milestone in Seiko's 1966 lineup. With its 20mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-7e6462c673cc]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1966

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