Seiko Cal. 7178 - 283

The Seiko 7178-283 represents an important milestone in Seiko's 1969 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-6711d4f80af1]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

32j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1969

Related Models

• Seiko 6636-380
• Seiko 6185-990
• Seiko 4595-419
• Seiko 4438-368
• Seiko 5249-605
• Seiko 4518-741
• Seiko 3873-830
• Seiko 3845-450
• Seiko 4431-625
• Seiko 0736-700
• Seiko 6276-168
• Seiko 5223-729