Seiko Cal. 7181 - 587

This Spring Drive model from 1983 features a 40mm Gold-Plated case. It features a Silver dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-5d5affdd6de4]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1983

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