Seiko Cal. 6397 - 254

This Spring Drive model from 1981 features a 40mm Titanium case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-f1d0408b5903]

Also known as: Tuna, Panda

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1981

Related Models

• Seiko 6338-246
• Seiko 0711-865
• Seiko 7116-733
• Seiko 5639-478
• Seiko 6141-333
• Seiko 5634-753
• Seiko 6646-382
• Seiko 7051-597
• Seiko 3892-914
• Seiko 6192-550
• Seiko 4499-607
• Seiko 5288-915