Seiko Cal. 6339 - 642

The Seiko 6339-642 represents an important milestone in Seiko's 1977 lineup. Powered by the 6339 caliber with 18j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-721365844891]

Also known as: UFO, Emperor

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1977

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