Seiko Cal. 6290 - 391

The Seiko 6290-391 represents an important milestone in Seiko's 1981 lineup. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-ff7a4edcb5b6]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1981

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