Seiko Cal. 6663 - 233

This Spring Drive model from 1978 features a 34mm Titanium case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-6acf3b7ad699]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1978

Related Models

• Seiko 6313-807
• Seiko 7070-556
• Seiko 5648-316
• Seiko 5212-832
• Seiko 0728-552
• Seiko 4437-571
• Seiko 0722-925
• Seiko 4568-272
• Seiko 5675-523
• Seiko 3827-192
• Seiko 5226-301
• Seiko 6158-942