Seiko Cal. 6391 - 630

The Seiko 6391-630 represents an important milestone in Seiko's 1971 lineup. It features a White dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-5e4e4a5289cb]

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1971

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