Seiko Cal. 5678 - 655

The Seiko 5678-655 represents an important milestone in Seiko's 1985 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-38e14430c187]

Also known as: Helmet, Navigator

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1985

Related Models

• Seiko 3858-226
• Seiko 0733-922
• Seiko 0769-454
• Seiko 4549-880
• Seiko 6630-308
• Seiko 5689-954
• Seiko 6293-176
• Seiko 6151-924
• Seiko 7160-257
• Seiko 7136-830
• Seiko 7011-906
• Seiko 6625-441