Seiko Cal. 3861 - 881

This Hand-Winding model from 1990 features a 40mm Titanium case. It features a Black dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-fd1641efc02e]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1990

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