Seiko Cal. 6387 - 818

Released in 1983, the Cal. 6387 with design code 818 was part of Seiko's domestic market collection. With its 18mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-4988755ed2ec]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1983

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