Seiko Cal. 6139 - 680

The 6139-680 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-87bafa459190]

Also known as: Sumo, Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1967

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