Seiko Cal. 6689 - 431

The 6689-431 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6689 caliber with 25j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-fdb7ae0b82f9]

Also known as: Rally, Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1966

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