Seiko Cal. 7180 - 376

This Spring Drive model from 1990 features a 43mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-0e27b57cf6e8]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1990

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