Seiko Cal. 6684 - 139

This Automatic model from 1974 features a 41mm PVD Black case. Powered by the 6684 caliber with 34j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-b17228d61b4d]

Also known as: Bullhead, World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1974

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