Seiko Cal. 4440 - 557

The Seiko 4440-557 represents an important milestone in Seiko's 1990 lineup. Powered by the 4440 caliber with 28j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-6fbf65fe019a]

Also known as: Turtle, World Timer

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1990

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