Seiko Cal. 5231 - 209

The Seiko 5231-209 represents an important milestone in Seiko's 1984 lineup. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-4eab8aee0e1a]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1984

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