Seiko Cal. 7181 - 231

This Quartz model from 1992 features a 41mm PVD Black case. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-401d4dbff72b]

Also known as: Helmet, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1992

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