Seiko Cal. 4439 - 730

The Seiko 4439-730 represents an important milestone in Seiko's 1966 lineup. Powered by the 4439 caliber with 30j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-3f078ded24cc]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

30j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1966

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