Seiko Cal. 6620 - 650

This Spring Drive model from 1965 features a 38mm Gold-Plated case. Powered by the 6620 caliber with 23j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-d4be13e7aa67]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1965

Related Models

• Seiko 4526-574
• Seiko 6223-894
• Seiko 7027-831
• Seiko 5269-330
• Seiko 5699-883
• Seiko 0744-835
• Seiko 7121-104
• Seiko 6315-162
• Seiko 4454-691
• Seiko 6195-930
• Seiko 4533-473
• Seiko 6235-631