Seiko Cal. 4528 - 477

Released in 1997, the Cal. 4528 with design code 477 was part of Seiko's domestic market collection. Powered by the 4528 caliber with 22j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-82bc77935da0]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1997

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