Seiko Cal. 3831 - 447

This Spring Drive model from 1985 features a 39mm Hardlex-Coated Steel case. It features a Navy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-94f5c20c4a39]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1985

Related Models

• Seiko 0727-842
• Seiko 6141-718
• Seiko 6644-835
• Seiko 6259-234
• Seiko 7166-515
• Seiko 4585-877
• Seiko 3853-531
• Seiko 6290-796
• Seiko 6216-545
• Seiko 7112-596
• Seiko 6693-790
• Seiko 6312-877