Seiko Cal. 4489 - 728

The Seiko 4489-728 represents an important milestone in Seiko's 1985 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-00fa7bab4e78]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1985

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