Seiko Cal. 6397 - 290

This Spring Drive model from 1978 features a 34mm Hardlex-Coated Steel case. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-ac0fc44e4ce2]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1978

Related Models

• Seiko 5229-924
• Seiko 6153-191
• Seiko 7059-341
• Seiko 7078-591
• Seiko 4565-111
• Seiko 5272-459
• Seiko 4544-240
• Seiko 6611-632
• Seiko 4525-811
• Seiko 7199-865
• Seiko 5273-808
• Seiko 5663-315