Seiko Cal. 6691 - 731

This Hand-Winding model from 1989 features a 42mm Titanium case. It features a Black dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-00f68c3f2f6a]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1989

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