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179 points farslan | 1 comments | | HN request time: 0.251s | source
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joshlemer ◴[] No.40214187[source]
Anyone know about any mechanical wall clocks, grandfather clocks, or mantle clocks (? I mean ones that stand on their own) which show the date? It seems that this is a really commonly sought after feature of wrist watches but for some reason hard to find or non existent in mechanical non-wrist clocks.
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quartesixte ◴[] No.40214668[source]
Unfortunately they're not really a thing. Some grandfather/grandmother clocks came with moon phases, but innovation never made it further.

IMO mostly has to do with the fact that mechanical clocks didn't see much innovation over the past century. The most talented watch makers have gone on to watches and people largely stopped buying Grandfather clocks.

Not to mention, other obvious problems of weight, material costs, and the increased size requiring more power to turn all those gears.

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1. dylan604 ◴[] No.40216080[source]
Every 24 hours, advance the DoW through 360°/7 increments. At the same time, every 24 hours advance the DoM through 28, 29, 30, 31 increments. How do you now keep DoW and DoM in proper sync when DoM needs to be updated ~every other month?