Seiko Cal. 6139 - 205

The Seiko 6139-205 represents an important milestone in Seiko's 1970 lineup. Powered by the 6139 caliber with 21j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-ed5670ff135b]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1970

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