Seiko Cal. 5643 - 225

This Quartz model from 1987 features a 43mm Hardlex-Coated Steel case. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-b456a3b8cd2d]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1987

Related Models

• Seiko 6148-867
• Seiko 3821-583
• Seiko 4552-929
• Seiko 6262-961
• Seiko 4597-485
• Seiko 6317-900
• Seiko 7087-657
• Seiko 0789-140
• Seiko 3895-945
• Seiko 6340-917
• Seiko 0725-492
• Seiko 4590-359