Seiko Cal. 5643 - 909

Released in 1989, the Cal. 5643 with design code 909 was part of Seiko's domestic market collection. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-6f166df7dced]

Also known as: Sumo, Flighty

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1989

Related Models

• Seiko 6255-233
• Seiko 3843-516
• Seiko 5691-741
• Seiko 7165-724
• Seiko 6246-861
• Seiko 3881-547
• Seiko 7090-625
• Seiko 5616-462
• Seiko 6648-465
• Seiko 7156-534
• Seiko 4591-193
• Seiko 5230-982