Seiko Cal. 5621 - 336

The 5621-336 is a sought-after Solar piece from Seiko's golden era. Powered by the 5621 caliber with 21j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-575c20d04d7f]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1976

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