Seiko Cal. 6231 - 154

Released in 1970, the Cal. 6231 with design code 154 was part of Seiko's domestic market collection. It features a Cream dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-7ea32db4b5a7]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1970

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