Seiko Cal. 6390 - 516

The Seiko 6390-516 represents an important milestone in Seiko's 1984 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ca44f5f92242]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

18j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1984

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