Seiko Cal. 6657 - 698

Released in 1998, the Cal. 6657 with design code 698 was part of Seiko's domestic market collection. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-0dd23fb73cdf]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1998

Related Models

• Seiko 4478-550
• Seiko 6233-817
• Seiko 6112-563
• Seiko 7069-131
• Seiko 6621-548
• Seiko 6327-114
• Seiko 6110-442
• Seiko 7013-580
• Seiko 5221-427
• Seiko 6129-484
• Seiko 6164-609
• Seiko 6258-652