Seiko Cal. 6336 - 639

The Seiko 6336-639 represents an important milestone in Seiko's 1977 lineup. Powered by the 6336 caliber with 30j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-bbdf34c9cb07]

Also known as: Tuna, UFO

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1977

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