Seiko Cal. 7188 - 179

This Spring Drive model from 1974 features a 37mm PVD Black case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-d3b527b32423]

Also known as: Sumo, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1974

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