Seiko Cal. 3866 - 198

The Seiko 3866-198 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-1718a511abb5]

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1971

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