Seiko Cal. 3870 - 234

The Seiko 3870-234 represents an important milestone in Seiko's 1982 lineup. Powered by the 3870 caliber with 28j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-360e3c0365da]

Also known as: Sumo, Helmet

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1982

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