Seiko Cal. 6390 - 646

This Spring Drive model from 1965 features a 35mm Two-Tone case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-996d0822de61]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1965

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