Seiko Cal. 6648 - 550

The Seiko 6648-550 represents an important milestone in Seiko's 1984 lineup. Powered by the 6648 caliber with 17j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-0ca5f50fd83b]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1984

Related Models

• Seiko 6228-928
• Seiko 6679-362
• Seiko 6214-512
• Seiko 5629-978
• Seiko 6651-578
• Seiko 4535-192
• Seiko 3892-881
• Seiko 6625-691
• Seiko 7125-209
• Seiko 0732-107
• Seiko 0742-466
• Seiko 6154-199