Seiko Cal. 6397 - 525

The Seiko 6397-525 represents an important milestone in Seiko's 1972 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-9d1cb9aa7774]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1972

Related Models

• Seiko 7053-732
• Seiko 4562-473
• Seiko 4492-442
• Seiko 6212-186
• Seiko 5658-703
• Seiko 7039-561
• Seiko 4462-643
• Seiko 4491-653
• Seiko 3838-921
• Seiko 7177-233
• Seiko 3896-101
• Seiko 5229-393