Seiko Cal. 3870 - 330

The Seiko 3870-330 represents an important milestone in Seiko's 1983 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-1bf385005fa7]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1983

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