Seiko Cal. 7155 - 431

The 7155-431 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7155 caliber with 27j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-32c79a156e20]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1977

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