Seiko Cal. 6637 - 194

This Spring Drive model from 1979 features a 46mm PVD Black case. With its 18mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-cc47b93f1fa5]

Also known as: Shogun, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1979

Related Models

• Seiko 3889-852
• Seiko 4521-872
• Seiko 4480-980
• Seiko 3867-561
• Seiko 6613-472
• Seiko 7019-608
• Seiko 6344-821
• Seiko 6143-483
• Seiko 4484-496
• Seiko 6189-744
• Seiko 0711-402
• Seiko 6292-879