Seiko Cal. 5657 - 339

The Seiko 5657-339 represents an important milestone in Seiko's 1969 lineup. With its 19mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-e57577ac3fe7]

Also known as: UFO, Rally

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1969

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