Seiko Cal. 7154 - 923

The Seiko 7154-923 represents an important milestone in Seiko's 1987 lineup. Powered by the 7154 caliber with 20j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-f71e8501818b]

Also known as: Silverwave, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1987

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