Seiko Cal. 5650 - 938

This Spring Drive model from 1991 features a 35mm Two-Tone case. With its 19mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-9d9fe71fa16c]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1991

Related Models

• Seiko 4555-376
• Seiko 3870-698
• Seiko 6285-769
• Seiko 5259-661
• Seiko 6398-671
• Seiko 7079-521
• Seiko 5655-997
• Seiko 3837-280
• Seiko 5673-307
• Seiko 6118-320
• Seiko 7032-767
• Seiko 3860-840