Seiko Cal. 5689 - 128

Released in 1971, the Cal. 5689 with design code 128 was part of Seiko's domestic market collection. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-691cde0af007]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1971

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