Seiko Cal. 6634 - 423

This Hand-Winding model from 1968 features a 46mm Gold-Plated case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-0212dd21535b]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1968

Related Models

• Seiko 4578-675
• Seiko 7035-176
• Seiko 6220-311
• Seiko 0765-830
• Seiko 7153-155
• Seiko 6289-242
• Seiko 6172-595
• Seiko 3882-633
• Seiko 7074-991
• Seiko 3884-151
• Seiko 6335-666
• Seiko 5292-725