Seiko Cal. 6630 - 748

This Automatic model from 1981 features a 38mm PVD Black case. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-42fd6559fc79]

Also known as: UFO, Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1981

Related Models

• Seiko 6313-411
• Seiko 6695-794
• Seiko 6693-922
• Seiko 4574-517
• Seiko 5655-357
• Seiko 6324-137
• Seiko 3837-764
• Seiko 5292-716
• Seiko 7129-762
• Seiko 4579-979
• Seiko 6622-254
• Seiko 5627-790