Seiko Cal. 6647 - 686

The Seiko 6647-686 represents an important milestone in Seiko's 1984 lineup. It features a Cream dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-9c353b0895ab]

Also known as: Sumo, Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1984

Related Models

• Seiko 0791-911
• Seiko 4533-893
• Seiko 6285-261
• Seiko 7159-769
• Seiko 4592-549
• Seiko 3878-936
• Seiko 4450-833
• Seiko 0788-426
• Seiko 5293-888
• Seiko 5227-786
• Seiko 7193-207
• Seiko 0753-878