Seiko Cal. 3859 - 140

The Seiko 3859-140 represents an important milestone in Seiko's 1991 lineup. Powered by the 3859 caliber with 25j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-7f5bdcb802bb]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1991

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