Seiko Cal. 3866 - 402

The Seiko 3866-402 represents an important milestone in Seiko's 1971 lineup. Powered by the 3866 caliber with 36j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-c40dce7e8c29]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1971

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