Seiko Cal. 7151 - 254

The Seiko 7151-254 represents an important milestone in Seiko's 1981 lineup. Powered by the 7151 caliber with 18j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-83d81fb0289a]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1981

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