Seiko Cal. 7187 - 541

The Seiko 7187-541 represents an important milestone in Seiko's 1975 lineup. Powered by the 7187 caliber with 21j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-d4def9049193]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1975

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