Seiko Cal. 6394 - 831

The Seiko 6394-831 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-7271d32ba957]

Also known as: UFO, World Timer

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1970

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