Seiko Cal. 7154 - 645

The Seiko 7154-645 represents an important milestone in Seiko's 1966 lineup. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-084cb803ef29]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1966

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