Seiko Cal. 6331 - 390

The Seiko 6331-390 represents an important milestone in Seiko's 1973 lineup. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-50bb8ed45f9d]

Also known as: Goldfeather, Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1973

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