Seiko Cal. 6131 - 183

The Seiko 6131-183 represents an important milestone in Seiko's 1986 lineup. With its 20mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-968924b4cf70]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1986

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