Seiko Cal. 6645 - 656

The 6645-656 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-b6071b2b7ec8]

Also known as: Goldfeather, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1969

Related Models

• Seiko 6246-387
• Seiko 6266-956
• Seiko 7070-860
• Seiko 6238-209
• Seiko 6388-365
• Seiko 5239-446
• Seiko 6174-217
• Seiko 6659-427
• Seiko 7055-697
• Seiko 4467-316
• Seiko 7144-177
• Seiko 7129-420