Seiko Cal. 6645 - 450

The Seiko 6645-450 represents an important milestone in Seiko's 1970 lineup. Powered by the 6645 caliber with 22j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-5385f58541da]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1970

Related Models

• Seiko 6344-384
• Seiko 4563-184
• Seiko 4559-772
• Seiko 6664-725
• Seiko 7019-228
• Seiko 6636-550
• Seiko 6198-537
• Seiko 6368-995
• Seiko 6210-138
• Seiko 6346-821
• Seiko 6664-351
• Seiko 7135-107