Seiko Cal. 7181 - 507

This Quartz model from 1973 features a 41mm Two-Tone case. It features a Navy dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-e6c232436e10]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1973

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