Seiko Cal. 4428 - 591

The Seiko 4428-591 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-42b0e09b149b]

Also known as: Panda, World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1970

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