Seiko Cal. 4521 - 790

This Spring Drive model from 1976 features a 38mm Gold-Plated case. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-45303f22f594]

Also known as: Sumo, Panda

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1976

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