Seiko Cal. 6139 - 645

The 6139-645 is a sought-after Quartz piece from Seiko's golden era. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-adecc42dc114]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1983

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