Rado Matterhorn 11918: the vintage buyer's guide

The strongest Matterhorn configuration pairs a silver vertically brushed dial with a black crosshair, applied faceted rectangular indices and the rotating anchor below 12 o'clock. Another silver version uses a frosted texture with vertical linear printing, while the Conway variant brings a deep blue vertically brushed dial and applied block indices. Those are meaningful variants, not interchangeable descriptions of one dial.

Reference 11918 therefore needs to be judged as a complete configuration. A blue Conway dial is not automatically evidence of a franken watch, because that pairing has occurred on the reference, but loose combinations of the known hands, indices and dial furniture still require caution. Between the established variants, the silver crosshair Matterhorn gives the most legible identity and the safest starting point.

At 36-37 mm excluding the crown, the steel cushion case occupies more wrist than a round watch of the same diameter because its broad corners carry the shape outward. The vertically brushed or frosted silver surface keeps the applied furniture readable, while the deep blue Conway dial changes more noticeably as its brushing catches light. The case remains compact enough for a cuff, although no thickness measurement is established here.

The automatic movement and 25-jewel specification make the 11918 mechanically conventional beside its more assertive case. Service history is unknown unless supported by paperwork, and the jewel count says nothing about present accuracy or wear. Buy the case and dial first, then budget for mechanical assessment rather than treating an unverified service claim as added value.

Heavy oxidation on the applied indices is the most visible fault among the silver examples, and ageing can also mark the hands on the blue Conway dial. Neither should be relabelled as attractive patina when the metal surface is corroded. A clean dial with coherent furniture deserves a premium because replacement parts can preserve function while weakening the configuration.

Polishing removes the cushion case's geometric advantage first. Sharp case lines remain visible on stronger examples, while repeated refinishing softens the corners and transitions permanently. Redials are the other expensive mistake: the vertical texture, crosshair and printed elements must agree, and a smooth or crudely recreated surface changes the watch more than ordinary case wear.

The safest purchase is the silver crosshair Matterhorn with an intact textured surface, matching applied furniture and defined cushion-case edges. Choose that against a brighter but refinished dial, a heavily oxidised set of indices or a rounded case. Without documentation, the service history and replacement history remain unknown, so no broader originality claim is justified.