Seiko Cal. 6656 - 279

This Spring Drive model from 1979 features a 36mm Titanium case. Powered by the 6656 caliber with 25j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-c0b044c4326f]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1979

Related Models

• Seiko 5219-887
• Seiko 5273-794
• Seiko 7034-278
• Seiko 6375-968
• Seiko 6252-442
• Seiko 7045-705
• Seiko 6251-790
• Seiko 6250-279
• Seiko 3878-315
• Seiko 4425-103
• Seiko 0712-727
• Seiko 7114-340