Seiko Cal. 3866 - 699

The Seiko 3866-699 represents an important milestone in Seiko's 1970 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-c3c630ec046d]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1970

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