Seiko Cal. 5237 - 144

The 5237-144 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5237 caliber with 21j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-d48c5fa47d1e]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1969

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