Seiko Cal. 4521 - 812

The 4521-812 is a sought-after Quartz piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-1583b5be9c31]

Also known as: UFO, Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1968

Related Models

• Seiko 7199-588
• Seiko 6118-896
• Seiko 0765-713
• Seiko 7015-240
• Seiko 7169-975
• Seiko 0728-509
• Seiko 3847-647
• Seiko 3856-692
• Seiko 6112-343
• Seiko 7061-186
• Seiko 3838-648
• Seiko 6640-173