Seiko Cal. 3866 - 601

The Seiko 3866-601 represents an important milestone in Seiko's 1967 lineup. Powered by the 3866 caliber with 30j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-bc9c1e896110]

Also known as: Turtle, Monster

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1967

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