Seiko Cal. 3821 - 638

The 3821-638 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-d8716bdb7b52]

Also known as: Shogun, Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1990

Related Models

• Seiko 4478-419
• Seiko 7018-225
• Seiko 5291-373
• Seiko 7148-893
• Seiko 4419-969
• Seiko 7133-626
• Seiko 0721-155
• Seiko 3877-942
• Seiko 6272-910
• Seiko 6330-375
• Seiko 5286-509
• Seiko 4588-153