Seiko Cal. 6391 - 427

This Quartz model from 1989 features a 46mm PVD Black case. Powered by the 6391 caliber with 32j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-c4679b433f72]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1989

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