Seiko Cal. 6139 - 366

The Seiko 6139-366 represents an important milestone in Seiko's 1977 lineup. Powered by the 6139 caliber with 26j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-aebc11302eb9]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1977

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