Seiko Cal. 4554 - 793

This Spring Drive model from 1991 features a 40mm Two-Tone case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-120a80a9b11e]

Also known as: Sportsmatic, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1991

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