Seiko Cal. 7090 - 936

This Hand-Winding model from 1990 features a 34mm Stainless Steel case. Powered by the 7090 caliber with 21j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-1c0d8c293f2d]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1990

Related Models

• Seiko 5634-626
• Seiko 6640-830
• Seiko 5254-964
• Seiko 0781-587
• Seiko 7092-170
• Seiko 5219-723
• Seiko 0771-450
• Seiko 6636-237
• Seiko 6210-596
• Seiko 6120-430
• Seiko 4487-445
• Seiko 4436-600