Seiko Cal. 6646 - 403

This Automatic model from 1973 features a 45mm Two-Tone case. It features a Green dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-0d4c9838241c]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1973

Related Models

• Seiko 0792-911
• Seiko 6653-924
• Seiko 5255-501
• Seiko 6648-395
• Seiko 4588-265
• Seiko 5627-948
• Seiko 7179-835
• Seiko 7119-337
• Seiko 4519-708
• Seiko 3827-298
• Seiko 7143-901
• Seiko 5658-776