Seiko Cal. 6318 - 820

This Spring Drive model from 1980 features a 42mm Gold-Plated case. With its 22mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-14173a2df4a0]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1980

Related Models

• Seiko 3885-906
• Seiko 5232-640
• Seiko 6699-582
• Seiko 6153-708
• Seiko 6330-807
• Seiko 4547-277
• Seiko 4549-570
• Seiko 7060-878
• Seiko 7149-561
• Seiko 4536-739
• Seiko 0792-403
• Seiko 4445-913