Seiko Cal. 6681 - 830

Seiko 6681-830

The 6681-830 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6681 caliber with 22j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-135cff9ed3a8]

Also known as: Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
11.4mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
22j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1965

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