Seiko Cal. 6690 - 530

The Seiko 6690-530 represents an important milestone in Seiko's 1990 lineup. It features a Black dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-2a436cd0cabf]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1990

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