Seiko Cal. 7187 - 518

This Spring Drive model from 1993 features a 41mm Hardlex-Coated Steel case. Powered by the 7187 caliber with 22j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-aab484b78e35]

Also known as: Monster, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1993

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