Seiko Cal. 6131 - 534

The Seiko 6131-534 represents an important milestone in Seiko's 1968 lineup. With its 20mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-b6367bb09931]

Also known as: Sea Horse, Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1968

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