Seiko Cal. 5623 - 587

The 5623-587 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5623 caliber with 20j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-40ad6fd4ea66]

Also known as: Sumo, Pogue

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1975

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