Seiko Cal. 5661 - 572

The Seiko 5661-572 represents an important milestone in Seiko's 1971 lineup. With its 21mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-e5fcb5eb25d3]

Also known as: Samurai, Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

32j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1971

Related Models

• Seiko 6660-181
• Seiko 6651-606
• Seiko 6368-332
• Seiko 3867-243
• Seiko 6137-145
• Seiko 4450-118
• Seiko 4452-683
• Seiko 7192-980
• Seiko 6319-574
• Seiko 6114-571
• Seiko 6644-828
• Seiko 6398-253