Seiko Cal. 6630 - 473

The 6630-473 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-bb60fde5e24c]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1970

Related Models

• Seiko 7134-820
• Seiko 6678-562
• Seiko 6234-859
• Seiko 7082-111
• Seiko 5617-741
• Seiko 4490-747
• Seiko 5278-267
• Seiko 5612-326
• Seiko 4479-916
• Seiko 6224-156
• Seiko 6681-203
• Seiko 7175-157