Seiko Cal. 6681 - 366

The Seiko 6681-366 represents an important milestone in Seiko's 1968 lineup. Powered by the 6681 caliber with 32j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-01e7bf658be2]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1968

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