Seiko Cal. 4439 - 729

The Seiko 4439-729 represents an important milestone in Seiko's 1968 lineup. Powered by the 4439 caliber with 35j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-a99676767430]

Also known as: Monster, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1968

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