Seiko Cal. 5645 - 553

The Seiko 5645-553 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ea6cfb53fe3a]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

19j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1973

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