Seiko Cal. 5661 - 353

The Seiko 5661-353 represents an important milestone in Seiko's 1970 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-1a2f33b1115d]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1970

Related Models

• Seiko 6228-203
• Seiko 7088-284
• Seiko 6229-138
• Seiko 7192-356
• Seiko 7057-765
• Seiko 0763-959
• Seiko 7050-877
• Seiko 4571-708
• Seiko 7122-678
• Seiko 4497-615
• Seiko 5297-275
• Seiko 6276-736