Seiko Cal. 3870 - 197

The Seiko 3870-197 represents an important milestone in Seiko's 1965 lineup. Powered by the 3870 caliber with 31j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-e74050779ef2]

Also known as: Samurai, Goldfeather

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1965

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