Seiko Cal. 3866 - 764

This Spring Drive model from 1986 features a 41mm PVD Black case. With its 18mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-d4761757aac6]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1986

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