Seiko Cal. 4521 - 783

The 4521-783 is a sought-after Solar piece from Seiko's golden era. With its 21mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-9a68d715f890]

Also known as: Sumo, Emperor

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1970

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