Seiko Cal. 3898 - 528

The Seiko 3898-528 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-4b900b28c6ec]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1970

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