Seiko Cal. 4553 - 993

Released in 1971, the Cal. 4553 with design code 993 was part of Seiko's domestic market collection. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-d43ed23ccca4]

Also known as: UFO, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1971

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