Seiko Cal. 3866 - 509

This Automatic model from 1971 features a 35mm PVD Black case. Powered by the 3866 caliber with 25j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-625ed2b913ae]

Also known as: Turtle

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1971

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