Seiko Cal. 4528 - 421

The Seiko 4528-421 represents an important milestone in Seiko's 1971 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-6baa6dffd3ec]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1971

Related Models

• Seiko 5648-831
• Seiko 7167-455
• Seiko 6121-131
• Seiko 7181-521
• Seiko 4513-521
• Seiko 6642-939
• Seiko 5615-571
• Seiko 6263-268
• Seiko 7074-115
• Seiko 6391-188
• Seiko 4525-664
• Seiko 3871-304