Seiko Cal. 6643 - 973

The 6643-973 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-0364380bafc6]

Also known as: Shogun, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1991

Related Models

• Seiko 6326-812
• Seiko 3813-911
• Seiko 7172-290
• Seiko 5215-837
• Seiko 0785-411
• Seiko 7075-727
• Seiko 3873-765
• Seiko 0774-377
• Seiko 6251-738
• Seiko 5630-198
• Seiko 6379-129
• Seiko 4460-596