Seiko Cal. 3861 - 286

This Automatic model from 1991 features a 46mm Two-Tone case. Powered by the 3861 caliber with 36j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-79d85d80d1d4]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1991

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