Seiko Cal. 6391 - 499

This Hand-Winding model from 1979 features a 35mm Two-Tone case. With its 21mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-ea6ee9e67d04]

Also known as: UFO, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1979

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