Seiko Cal. 6656 - 779

The 6656-779 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-688d4211ef8b]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1993

Related Models

• Seiko 7062-993
• Seiko 6635-156
• Seiko 7025-453
• Seiko 6362-552
• Seiko 6272-557
• Seiko 7126-829
• Seiko 6370-673
• Seiko 6395-582
• Seiko 7140-560
• Seiko 5248-319
• Seiko 7122-188
• Seiko 0750-837