Seiko Cal. 6318 - 812

Released in 1977, the Cal. 6318 with design code 812 was part of Seiko's domestic market collection. With its 18mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-da57902ed225]

Also known as: Helmet, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1977

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