Seiko Cal. 4439 - 551

The Seiko 4439-551 represents an important milestone in Seiko's 1974 lineup. Powered by the 4439 caliber with 19j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-ef0b682a6cb8]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1974

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