Seiko Cal. 4553 - 635

The 4553-635 is a sought-after Solar piece from Seiko's golden era. Powered by the 4553 caliber with 20j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-9737af61ef7d]

Also known as: World Timer, Sea Horse

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1977

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