Seiko Cal. 6231 - 355

The Seiko 6231-355 represents an important milestone in Seiko's 1973 lineup. It features a Black dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-641ef9a946b4]

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1973

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