Seiko Cal. 3859 - 266

The Seiko 3859-266 represents an important milestone in Seiko's 1986 lineup. With its 18mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-1b6f05b9b09d]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1986

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