Seiko Cal. 6391 - 427

Seiko 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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