Seiko Cal. 6646 - 144

This Hand-Winding model from 1986 features a 37mm Titanium case. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-6b583a8044fa]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1986

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