Seiko Cal. 3827 - 712

This Spring Drive model from 1978 features a 44mm PVD Black case. It features a Cream dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-8a29a0f2e132]

Also known as: Helmet, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1978

Related Models

• Seiko 5642-740
• Seiko 6665-505
• Seiko 7132-668
• Seiko 6666-801
• Seiko 4486-896
• Seiko 6197-956
• Seiko 0753-197
• Seiko 5627-204
• Seiko 4418-876
• Seiko 4584-237
• Seiko 3880-895
• Seiko 6290-757