Seiko Cal. 6139 - 421

The Seiko 6139-421 represents an important milestone in Seiko's 1997 lineup. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-8ec709ddc4c1]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1997

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