Seiko Cal. 5610 - 720

The 5610-720 is a sought-after Solar piece from Seiko's golden era. Powered by the 5610 caliber with 27j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-77b4c37aa20d]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1966

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