Seiko Cal. 5237 - 348

This Spring Drive model from 1968 features a 45mm Gold-Plated case. It features a Black dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-8ef1f9e2bb12]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1968

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