Seiko Cal. 5237 - 503

The 5237-503 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5237 caliber with 32j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-5f9d592e9564]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1996

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