Seiko Cal. 6391 - 610

Seiko 6391-610

The 6391-610 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6391 caliber with 24j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-d81e0d91b3b3]

Also known as: Monster, Shogun

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
37mm
Case Thickness
11.1mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
80m
Dial Color
Burgundy
Jewels
24j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1967

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