Seiko Cal. 3866 - 924

The 3866-924 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-fecca852ed5b]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1985

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