Seiko Cal. 6231 - 363

The Seiko 6231-363 represents an important milestone in Seiko's 1989 lineup. With its 21mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-1056a63ff54c]

Also known as: Helmet, Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1989

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