Seiko Cal. 4528 - 764

This Quartz model from 1977 features a 37mm PVD Black case. It features a Champagne dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-7f1ef82b7079]

Also known as: World Timer, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1977

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