Seiko Cal. 4520 - 766

This Spring Drive model from 1989 features a 37mm Two-Tone case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-d24bc230613b]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1989

Related Models

• Seiko 4589-100
• Seiko 0791-192
• Seiko 5663-805
• Seiko 4538-566
• Seiko 6636-176
• Seiko 7049-438
• Seiko 5628-932
• Seiko 6146-183
• Seiko 5274-394
• Seiko 5688-424
• Seiko 5233-280
• Seiko 6380-629