Seiko Cal. 5661 - 491

The Seiko 5661-491 represents an important milestone in Seiko's 1967 lineup. With its 22mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-467944179a14]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1967

Related Models

• Seiko 3814-140
• Seiko 6347-389
• Seiko 7086-743
• Seiko 4544-172
• Seiko 6313-363
• Seiko 0795-290
• Seiko 6291-608
• Seiko 4423-367
• Seiko 6641-654
• Seiko 7178-433
• Seiko 7147-368
• Seiko 5211-304