Seiko Cal. 6656 - 645

The Seiko 6656-645 represents an important milestone in Seiko's 1984 lineup. Powered by the 6656 caliber with 17j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-f4ebf8623eb9]

Also known as: Rally, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1984

Related Models

• Seiko 4484-515
• Seiko 6261-172
• Seiko 7171-669
• Seiko 7197-778
• Seiko 5290-469
• Seiko 6660-679
• Seiko 7044-186
• Seiko 6314-287
• Seiko 3845-264
• Seiko 7017-614
• Seiko 6671-512
• Seiko 7060-603