Seiko Cal. 6681 - 764

Seiko 6681-764

The 6681-764 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6681 caliber with 18j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-fbade165165b]

Also known as: Arnie

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
37mm
Case Thickness
8.2mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1987

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