Seiko Cal. 5624 - 521

The 5624-521 is a sought-after Solar piece from Seiko's golden era. Powered by the 5624 caliber with 28j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-3327b5ab352f]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1966

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