Seiko Cal. 5618 - 276

The Seiko 5618-276 represents an important milestone in Seiko's 1980 lineup. With its 20mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-1a2e48ca3fd7]

Also known as: Samurai, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1980

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