Seiko Cal. 6643 - 265

The Seiko 6643-265 represents an important milestone in Seiko's 1980 lineup. With its 20mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-dc8e0e8428a4]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1980

Related Models

• Seiko 5668-109
• Seiko 6271-233
• Seiko 6660-385
• Seiko 6692-489
• Seiko 5684-611
• Seiko 7192-671
• Seiko 6324-274
• Seiko 6637-764
• Seiko 5286-362
• Seiko 6141-525
• Seiko 6391-530
• Seiko 6618-815