Seiko Cal. 4528 - 101

The Seiko 4528-101 represents an important milestone in Seiko's 1999 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-055e3e28d7ac]

Also known as: Sumo, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1999

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