Seiko Cal. 6278 - 950

The Seiko 6278-950 represents an important milestone in Seiko's 1971 lineup. With its 21mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-fba384d33251]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1971

Related Models

• Seiko 7115-653
• Seiko 6339-383
• Seiko 6664-188
• Seiko 4424-109
• Seiko 7084-216
• Seiko 6364-275
• Seiko 6169-684
• Seiko 6369-342
• Seiko 4432-190
• Seiko 4566-731
• Seiko 6228-193
• Seiko 5247-682