Seiko Cal. 6131 - 646

The Seiko 6131-646 represents an important milestone in Seiko's 1984 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-137847707368]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1984

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