Seiko Cal. 6231 - 860

The Seiko 6231-860 represents an important milestone in Seiko's 1971 lineup. With its 18mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-fb4ae2bcd454]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1971

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