Bought a like new Z1 (1979) Gillette SS on eBay. It has a black handle. The first impressions are mixed. It is a well-engineered razor (the head has less parts compared to 40's SS, no soldered end caps). The blade aligns PERFECTLY when it is secures unlike it does in a Tech. The head geometry is very similar to one of the Tech. It is very light razor -47.3 g compared to 59.3 for 1953 Tech. The head is stamped from 1.00 mm thick sheet-metal compared to 1.25 mm for Tech. The painted black handle is most likely made of aluminum for cost-saving... So, I would say Tech feels more substantial. The shave was nice - no weepers with a new Personna Blue blade. This little razor may grow on me, but I really do not understand why people pay hundreds of dollars for say, Aristocrat which comes with very similar head and construction.
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