Seiko Cal. 4489 - 936

The Seiko 4489-936 represents an important milestone in Seiko's 1975 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-6e5bdeafbed9]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1975

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