Seiko Cal. 6643 - 215

The 6643-215 is a sought-after Solar piece from Seiko's golden era. With its 21mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-ce5bb5ef5c03]

Also known as: UFO, Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1991

Related Models

• Seiko 3860-357
• Seiko 5614-420
• Seiko 6280-876
• Seiko 6260-363
• Seiko 6392-557
• Seiko 7122-908
• Seiko 5267-477
• Seiko 6144-711
• Seiko 7196-473
• Seiko 5680-512
• Seiko 6314-454
• Seiko 6683-199