Seiko Cal. 6390 - 144

The Seiko 6390-144 represents an important milestone in Seiko's 1971 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-bf6549e14f06]

Also known as: Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1971

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