Seiko Cal. 4521 - 391

Released in 1982, the Cal. 4521 with design code 391 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-0ea901cf6e43]

Also known as: Bellmatic, World Timer

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1982

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