Seiko Cal. 4520 - 978

The Seiko 4520-978 represents an important milestone in Seiko's 1993 lineup. Powered by the 4520 caliber with 27j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-01dacf8753ff]

Also known as: Bellmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Champagne

Jewels

27j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1993

Related Models

• Seiko 7039-398
• Seiko 7114-610
• Seiko 6218-856
• Seiko 0776-627
• Seiko 0717-646
• Seiko 7129-250
• Seiko 7119-510
• Seiko 4411-561
• Seiko 6144-155
• Seiko 4597-720
• Seiko 4596-510
• Seiko 7062-157