Seiko Cal. 4520 - 685

The Seiko 4520-685 represents an important milestone in Seiko's 1975 lineup. Powered by the 4520 caliber with 21j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-cb62f29f9016]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1975

Related Models

• Seiko 7024-577
• Seiko 6650-303
• Seiko 4517-413
• Seiko 6228-257
• Seiko 6246-802
• Seiko 6116-452
• Seiko 0768-483
• Seiko 3818-389
• Seiko 6326-923
• Seiko 5284-569
• Seiko 4514-106
• Seiko 6244-138