Seiko Cal. 6646 - 846

This Quartz model from 1971 features a 37mm PVD Black case. With its 21mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-664dc8310b78]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1971

Related Models

• Seiko 7098-792
• Seiko 6378-127
• Seiko 7081-779
• Seiko 0765-873
• Seiko 6177-732
• Seiko 6278-555
• Seiko 5259-930
• Seiko 7191-163
• Seiko 4446-227
• Seiko 0711-944
• Seiko 7037-882
• Seiko 3821-858