Seiko Cal. 5630 - 587

The 5630-587 is a sought-after Solar piece from Seiko's golden era. Powered by the 5630 caliber with 27j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-c671a150a292]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1999

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