Seiko Cal. 3860 - 178

The Seiko 3860-178 represents an important milestone in Seiko's 1987 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-74132cc8f1c1]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1987

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