Seiko Cal. 6647 - 977

The 6647-977 is a sought-after Solar piece from Seiko's golden era. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-db2307b254f1]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1988

Related Models

• Seiko 3890-725
• Seiko 5277-246
• Seiko 6334-429
• Seiko 4542-158
• Seiko 4471-323
• Seiko 7146-387
• Seiko 6315-809
• Seiko 4584-884
• Seiko 4569-825
• Seiko 5240-803
• Seiko 5294-116
• Seiko 3866-674