Seiko Cal. 6620 - 398

The Seiko 6620-398 represents an important milestone in Seiko's 1987 lineup. Powered by the 6620 caliber with 19j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-eec16d3ae32b]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1987

Related Models

• Seiko 6282-950
• Seiko 4542-943
• Seiko 7112-556
• Seiko 6197-158
• Seiko 5255-893
• Seiko 3848-958
• Seiko 4581-927
• Seiko 6624-994
• Seiko 0777-995
• Seiko 7063-731
• Seiko 7044-574
• Seiko 5270-447