Seiko Cal. 6390 - 403

Seiko 6390-403

The 6390-403 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6390 caliber with 30j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-bb64bd10bb09]

Also known as: Samurai

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
13.6mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
30j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1981

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