Seiko Cal. 6646 - 924

This Spring Drive model from 1990 features a 36mm PVD Black case. With its 22mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-972fa03158d8]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1990

Related Models

• Seiko 6322-992
• Seiko 4476-575
• Seiko 6131-134
• Seiko 5615-380
• Seiko 0788-873
• Seiko 6288-236
• Seiko 6381-338
• Seiko 6227-762
• Seiko 6665-761
• Seiko 6676-490
• Seiko 6360-460
• Seiko 4557-723