Seiko Cal. 6340 - 131

The Seiko 6340-131 represents an important milestone in Seiko's 1979 lineup. With its 19mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-4d18c59a0aaa]

Also known as: Helmet, World Timer

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1979

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