Seiko Cal. 6397 - 920

This Automatic model from 1969 features a 41mm Stainless Steel case. Powered by the 6397 caliber with 22j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-c7ad4a627ebc]

Also known as: Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1969

Related Models

• Seiko 7157-904
• Seiko 6192-738
• Seiko 4563-161
• Seiko 5231-304
• Seiko 4474-239
• Seiko 7150-600
• Seiko 7062-982
• Seiko 4557-807
• Seiko 6160-543
• Seiko 7156-381
• Seiko 6216-107
• Seiko 6377-624