Seiko Cal. 5661 - 847

The Seiko 5661-847 represents an important milestone in Seiko's 1976 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-c36dd146d7c2]

Also known as: Tuna, UFO

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1976

Related Models

• Seiko 0755-538
• Seiko 5627-533
• Seiko 6614-961
• Seiko 6248-669
• Seiko 5630-758
• Seiko 6390-438
• Seiko 6389-605
• Seiko 5254-295
• Seiko 0745-241
• Seiko 4531-235
• Seiko 4456-613
• Seiko 0745-273