Seiko Cal. 3870 - 600

The Seiko 3870-600 represents an important milestone in Seiko's 1984 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-aa0c8b214d4f]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1984

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