Seiko Cal. 5257 - 163

The 5257-163 is a sought-after Solar piece from Seiko's golden era. Powered by the 5257 caliber with 18j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-6e2a63cd7922]

Also known as: World Timer, Crown

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1985

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