Seiko Cal. 6643 - 702

The 6643-702 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6643 caliber with 28j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-06a4d90015a1]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1992

Related Models

• Seiko 6194-216
• Seiko 7090-510
• Seiko 3882-480
• Seiko 6197-248
• Seiko 7132-475
• Seiko 7043-882
• Seiko 7192-703
• Seiko 4457-181
• Seiko 6231-443
• Seiko 5277-226
• Seiko 4484-820
• Seiko 3857-937