Seiko Cal. 6391 - 618

Seiko 6391-618

This Automatic model from 1985 features a 46mm Gold-Plated case. Powered by the 6391 caliber with 17j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-4c53ae33e955]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
8.5mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
70m
Dial Color
Navy
Jewels
17j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1985

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