Seiko Cal. 5688 - 889

Released in 1970, the Cal. 5688 with design code 889 was part of Seiko's domestic market collection. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-43ce89afa8e1]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1970

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