Seiko Cal. 5679 - 720

The Seiko 5679-720 represents an important milestone in Seiko's 1969 lineup. Powered by the 5679 caliber with 25j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-164a317b758d]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1969

Related Models

• Seiko 6156-647
• Seiko 6186-537
• Seiko 7093-639
• Seiko 7183-415
• Seiko 5625-151
• Seiko 5694-491
• Seiko 7168-404
• Seiko 4511-363
• Seiko 5232-292
• Seiko 6220-144
• Seiko 7094-240
• Seiko 6314-409