Seiko Cal. 5634 - 237

The 5634-237 is a sought-after Solar piece from Seiko's golden era. Powered by the 5634 caliber with 18j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-534225fc97f2]

Also known as: Sumo, Pogue

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1970

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