Seiko Cal. 5637 - 838

The 5637-838 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5637 caliber with 34j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-8a48f5468a5c]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1973

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