Seiko Cal. 6389 - 378

Seiko 6389-378

The 6389-378 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6389 caliber with 23j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-b8f3c2423bdb]

Also known as: Golden Tuna, Emperor

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
36mm
Case Thickness
12.8mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1995

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