Seiko Cal. 6390 - 428

The Seiko 6390-428 represents an important milestone in Seiko's 1974 lineup. With its 20mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-87c3a182a654]

Also known as: Panda, UFO

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1974

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