Seiko Cal. 5638 - 824

The 5638-824 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5638 caliber with 21j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-d3dd7f458b7b]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1983

Related Models

• Seiko 4535-423
• Seiko 4494-145
• Seiko 7196-654
• Seiko 6656-582
• Seiko 5667-364
• Seiko 7186-508
• Seiko 6179-934
• Seiko 4580-430
• Seiko 7181-566
• Seiko 5229-258
• Seiko 7043-869
• Seiko 6621-177