Seiko Cal. 6657 - 679

Released in 1969, the Cal. 6657 with design code 679 was part of Seiko's domestic market collection. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-677bc06cb44f]

Also known as: Samurai, Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1969

Related Models

• Seiko 4571-320
• Seiko 6345-969
• Seiko 4437-804
• Seiko 6322-948
• Seiko 5697-977
• Seiko 4524-479
• Seiko 0775-894
• Seiko 7074-333
• Seiko 6280-150
• Seiko 6294-670
• Seiko 6388-380
• Seiko 6251-967