Seiko Cal. 6390 - 990

The Seiko 6390-990 represents an important milestone in Seiko's 1975 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-18b5fd32dcc9]

Also known as: Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1975

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