Seiko Cal. 6689 - 748

The Seiko 6689-748 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-7ecf735f9050]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1981

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