Seiko Cal. 6690 - 566

The Seiko 6690-566 represents an important milestone in Seiko's 1966 lineup. It features a Cream dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-6218012fe94a]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1966

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