Seiko Cal. 6231 - 554

The Seiko 6231-554 represents an important milestone in Seiko's 1968 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-b28f6d82bd30]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1968

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