Seiko Cal. 3866 - 740

The Seiko 3866-740 represents an important milestone in Seiko's 1978 lineup. With its 22mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-321af8d59e86]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1978

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