Seiko Cal. 4439 - 749

The Seiko 4439-749 represents an important milestone in Seiko's 1975 lineup. Powered by the 4439 caliber with 34j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-a9158e6904f6]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1975

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