Seiko Cal. 6390 - 668

This Quartz model from 1997 features a 39mm Hardlex-Coated Steel case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-efa810b4246e]

Also known as: Bellmatic, World Timer

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1997

Related Models

• Seiko 6319-404
• Seiko 4550-172
• Seiko 6137-893
• Seiko 3894-975
• Seiko 4554-324
• Seiko 3845-615
• Seiko 5285-862
• Seiko 7154-590
• Seiko 6362-846
• Seiko 5255-613
• Seiko 5234-758
• Seiko 3888-226