Seiko Cal. 6690 - 999

This Hand-Winding model from 1991 features a 37mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-d51e9732c852]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1991

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