Seiko Cal. 7170 - 557

The 7170-557 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7170 caliber with 19j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-81baff43dce7]

Also known as: World Timer, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1968

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