Seiko Cal. 6171 - 620

This Hand-Winding model from 1989 features a 41mm PVD Black case. It features a Navy dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-a90d1981130d]

Also known as: Helmet, Silverwave

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1989

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