Seiko Cal. 5660 - 228

Released in 1995, the Cal. 5660 with design code 228 was part of Seiko's domestic market collection. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-be0cf0b33569]

Also known as: Monster, Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1995

Related Models

• Seiko 6631-180
• Seiko 4521-564
• Seiko 3897-989
• Seiko 7012-383
• Seiko 7044-964
• Seiko 4563-258
• Seiko 4474-844
• Seiko 5675-694
• Seiko 7158-818
• Seiko 6347-600
• Seiko 5288-373
• Seiko 6113-461