Seiko Cal. 4435 - 591

The 4435-591 is a sought-after Solar piece from Seiko's golden era. Powered by the 4435 caliber with 21j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-8e0188e7eb55]

Also known as: UFO

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1971

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