Seiko Cal. 5661 - 186

The Seiko 5661-186 represents an important milestone in Seiko's 1980 lineup. Powered by the 5661 caliber with 27j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-60d75d0edeec]

Also known as: Shogun, Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1980

Related Models

• Seiko 6190-185
• Seiko 3824-396
• Seiko 4448-161
• Seiko 7033-862
• Seiko 6187-752
• Seiko 6697-661
• Seiko 7143-736
• Seiko 6210-529
• Seiko 5618-664
• Seiko 4544-755
• Seiko 3882-438
• Seiko 6396-271