Seiko Cal. 6391 - 893

Seiko 6391-893

The 6391-893 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6391 caliber with 29j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-04aba1ccd75a]

Also known as: Bullhead

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
10.7mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
90m
Dial Color
Silver
Jewels
29j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1991

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