Seiko Cal. 5278 - 639

The Seiko 5278-639 represents an important milestone in Seiko's 1971 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-5201f99c9106]

Also known as: Rally, Arnie

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1971

Related Models

• Seiko 5290-306
• Seiko 7028-120
• Seiko 6320-346
• Seiko 6166-962
• Seiko 6357-906
• Seiko 3814-266
• Seiko 6165-523
• Seiko 7120-634
• Seiko 6142-550
• Seiko 4563-763
• Seiko 6280-346
• Seiko 4552-358