Seiko Cal. 6231 - 540

The Seiko 6231-540 represents an important milestone in Seiko's 1979 lineup. Powered by the 6231 caliber with 36j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-4b75e021e66c]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1979

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