Seiko Cal. 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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