Seiko Cal. 6139 - 621

The Seiko 6139-621 represents an important milestone in Seiko's 1968 lineup. Powered by the 6139 caliber with 28j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-15b8742812d0]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1968

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