Seiko Cal. 6613 - 979

This Spring Drive model from 1975 features a 38mm Stainless Steel case. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-b9c8cace418e]

Also known as: Helmet, Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1975

Related Models

• Seiko 6123-531
• Seiko 0761-661
• Seiko 6660-425
• Seiko 7188-216
• Seiko 0767-907
• Seiko 7125-324
• Seiko 0714-996
• Seiko 6683-218
• Seiko 3898-359
• Seiko 6395-504
• Seiko 4476-993
• Seiko 4557-446