Seiko Cal. 6668 - 437

The 6668-437 is a sought-after Solar piece from Seiko's golden era. Powered by the 6668 caliber with 26j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-c12d3ebc484e]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1997

Related Models

• Seiko 7047-833
• Seiko 6141-612
• Seiko 3870-179
• Seiko 6244-456
• Seiko 7110-812
• Seiko 7138-181
• Seiko 6677-514
• Seiko 6286-905
• Seiko 3856-243
• Seiko 0744-860
• Seiko 7142-410
• Seiko 6693-826