Seiko Cal. 4422 - 640

The 4422-640 is a sought-after Solar piece from Seiko's golden era. Powered by the 4422 caliber with 35j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-e1c00ffd6b56]

Also known as: Rally

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1979

Related Models

• Seiko 4488-759
• Seiko 7066-806
• Seiko 0765-282
• Seiko 0724-139
• Seiko 3834-680
• Seiko 7050-150
• Seiko 6615-627
• Seiko 5263-105
• Seiko 4585-493
• Seiko 6678-751
• Seiko 6221-470
• Seiko 6672-678