Seiko Cal. 6630 - 445

The 6630-445 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6630 caliber with 27j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-e378ad0e01ff]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1984

Related Models

• Seiko 4565-138
• Seiko 6366-207
• Seiko 5697-939
• Seiko 6225-199
• Seiko 4552-506
• Seiko 6213-676
• Seiko 7153-140
• Seiko 3896-768
• Seiko 3824-910
• Seiko 6381-977
• Seiko 6188-539
• Seiko 3849-269