Seiko Cal. 6618 - 238

The 6618-238 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-6aad44c8d6ef]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1969

Related Models

• Seiko 5271-144
• Seiko 7082-619
• Seiko 7188-147
• Seiko 6246-153
• Seiko 5664-102
• Seiko 0744-316
• Seiko 4466-564
• Seiko 5261-819
• Seiko 7056-400
• Seiko 4593-756
• Seiko 3825-411
• Seiko 5651-376