Seiko Cal. 6620 - 984

Released in 1970, the Cal. 6620 with design code 984 was part of Seiko's domestic market collection. It features a Navy dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-ffe6cc6b9acf]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1970

Related Models

• Seiko 7015-786
• Seiko 6215-471
• Seiko 6660-729
• Seiko 4519-797
• Seiko 6174-891
• Seiko 0779-248
• Seiko 5618-619
• Seiko 5255-874
• Seiko 6232-299
• Seiko 7189-609
• Seiko 5644-330
• Seiko 6147-972