Seiko Cal. 3866 - 387

The Seiko 3866-387 represents an important milestone in Seiko's 1991 lineup. It features a White dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-1f2dd2b1d51c]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1991

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