Seiko Cal. 6331 - 620

The 6331-620 is a sought-after Quartz piece from Seiko's golden era. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-6fb969c2b6a6]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1983

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