Seiko Cal. 6397 - 612

This Spring Drive model from 1975 features a 43mm Titanium case. It features a Cream dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-3d9fcdf9e78e]

Also known as: Sumo, Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1975

Related Models

• Seiko 5657-633
• Seiko 0764-992
• Seiko 7113-941
• Seiko 6638-365
• Seiko 7163-117
• Seiko 5658-428
• Seiko 6689-899
• Seiko 6259-914
• Seiko 4469-370
• Seiko 6231-147
• Seiko 5669-852
• Seiko 7063-794