Seiko Cal. 7057 - 171

The Seiko 7057-171 represents an important milestone in Seiko's 1973 lineup. Powered by the 7057 caliber with 31j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-25f96c6d2c31]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1973

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