Seiko Cal. 5278 - 604

The Seiko 5278-604 represents an important milestone in Seiko's 1990 lineup. Powered by the 5278 caliber with 20j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-2aacc0a3dd04]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1990

Related Models

• Seiko 7177-250
• Seiko 7050-962
• Seiko 4475-255
• Seiko 6120-706
• Seiko 3831-881
• Seiko 0739-940
• Seiko 6637-353
• Seiko 6698-948
• Seiko 6649-569
• Seiko 7021-787
• Seiko 5637-421
• Seiko 7182-948