Seiko Cal. 6391 - 813

The Seiko 6391-813 represents an important milestone in Seiko's 1984 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-26fcbcf2990b]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1984

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