Seiko Cal. 6391 - 181

Seiko 6391-181

The 6391-181 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6391 caliber with 17j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-7fdf752775fa]

Also known as: Shogun, Silverwave

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
8.9mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
110m
Dial Color
Silver
Jewels
17j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1985

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