Seiko Cal. 4528 - 986

Released in 1972, the Cal. 4528 with design code 986 was part of Seiko's domestic market collection. It features a Black dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-bf0d10f0c887]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1972

Related Models

• Seiko 5285-575
• Seiko 0792-623
• Seiko 7150-517
• Seiko 5252-746
• Seiko 6246-157
• Seiko 4536-996
• Seiko 6183-278
• Seiko 5283-971
• Seiko 6664-387
• Seiko 4555-874
• Seiko 0755-164
• Seiko 7154-111