Seiko Cal. 4557 - 897

This Solar model from 1987 features a 35mm Two-Tone case. Powered by the 4557 caliber with 29j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-65e473239a82]

Also known as: Helmet, Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1987

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