Seiko Cal. 7031 - 170

This Spring Drive model from 1982 features a 34mm PVD Black case. With its 20mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-98dc084ef829]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1982

Related Models

• Seiko 4488-745
• Seiko 6379-596
• Seiko 6315-310
• Seiko 7057-943
• Seiko 3833-314
• Seiko 6122-724
• Seiko 6239-519
• Seiko 4420-114
• Seiko 0755-156
• Seiko 6232-228
• Seiko 3863-599
• Seiko 3829-658