Seiko Cal. 4555 - 242

The Seiko 4555-242 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-9286675c5707]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1968

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