Seiko Cal. 6391 - 377

The Seiko 6391-377 represents an important milestone in Seiko's 1997 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-77bd5141ff5c]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1997

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