Seiko Cal. 4430 - 307

The Seiko 4430-307 represents an important milestone in Seiko's 1969 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-c09a0c88f32d]

Also known as: Navigator

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

42mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1969

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