Seiko Cal. 6643 - 678

The 6643-678 is a sought-after Automatic piece from Seiko's golden era. With its 19mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-981f102bf373]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1972

Related Models

• Seiko 0775-535
• Seiko 7141-883
• Seiko 7074-561
• Seiko 6223-565
• Seiko 4410-825
• Seiko 4451-555
• Seiko 4561-776
• Seiko 7037-213
• Seiko 5682-824
• Seiko 5656-459
• Seiko 4463-383
• Seiko 6125-578