Seiko Cal. 4553 - 521

The Seiko 4553-521 represents an important milestone in Seiko's 1977 lineup. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-f31a2f1fb281]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1977

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