Seiko Cal. 6621 - 590

The 6621-590 is a sought-after Automatic piece from Seiko's golden era. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-cfb438ee1252]

Also known as: Monster, Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1968

Related Models

• Seiko 6192-583
• Seiko 7161-277
• Seiko 4412-102
• Seiko 7154-364
• Seiko 5285-698
• Seiko 7181-766
• Seiko 7097-659
• Seiko 7120-146
• Seiko 7047-388
• Seiko 6339-322
• Seiko 0784-535
• Seiko 6137-113