Seiko Cal. 3859 - 892

The Seiko 3859-892 represents an important milestone in Seiko's 1976 lineup. Powered by the 3859 caliber with 31j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-a880ff8dcd11]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1976

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