Seiko Cal. 5643 - 651

This Hand-Winding model from 1970 features a 44mm Gold-Plated case. It features a Silver dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-825c278cbaf6]

Also known as: Sea Horse, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1970

Related Models

• Seiko 6292-552
• Seiko 6617-356
• Seiko 6113-941
• Seiko 4427-819
• Seiko 6210-881
• Seiko 6610-973
• Seiko 0784-730
• Seiko 6119-765
• Seiko 6643-992
• Seiko 7087-729
• Seiko 4533-261
• Seiko 0789-725