Seiko Cal. 6390 - 890

The Seiko 6390-890 represents an important milestone in Seiko's 1966 lineup. It features a Black dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-0885a041a21d]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1966

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