Seiko Cal. 4428 - 880

Released in 1977, the Cal. 4428 with design code 880 was part of Seiko's domestic market collection. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-fd65527bc57e]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1977

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