Seiko Cal. 6620 - 422

This Spring Drive model from 1980 features a 41mm Titanium case. Powered by the 6620 caliber with 21j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-427b9d220a25]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1980

Related Models

• Seiko 4573-632
• Seiko 6354-813
• Seiko 6131-267
• Seiko 7052-430
• Seiko 6261-670
• Seiko 7067-962
• Seiko 7180-476
• Seiko 7090-589
• Seiko 7057-361
• Seiko 6646-181
• Seiko 7140-865
• Seiko 6113-904