Seiko Cal. 4521 - 215

This Solar model from 1973 features a 36mm Gold-Plated case. Powered by the 4521 caliber with 33j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-57f2dea0b045]

Also known as: Crown

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1973

Related Models

• Seiko 5652-279
• Seiko 6310-178
• Seiko 3875-983
• Seiko 7187-433
• Seiko 3825-870
• Seiko 6147-160
• Seiko 5676-903
• Seiko 4543-109
• Seiko 6387-814
• Seiko 4492-116
• Seiko 6664-981
• Seiko 7153-360