Seiko Cal. 6391 - 761

The Seiko 6391-761 represents an important milestone in Seiko's 1971 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-18ca4de6fea3]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1971

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