Seiko Cal. 3870 - 520

The Seiko 3870-520 represents an important milestone in Seiko's 1991 lineup. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-488634b15cb8]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1991

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