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Raven Deep Tech

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OG Raven Deep Tech (#425)
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knightindustries

Increasing the Power Reserve (Question for a Watchmaker)

Considering the following examples: Tissot PRX Chronograph, driven by an ETA A05.H31: ~60 hours power reserve, based on the ETA 7753: 42 hours Tissot...
4
knightindustries

Height Difference Integrated vs. Modular Chronographs

It seems counter-intuitive that the ETA 2894-2 (6.1mm), one of the most popular modular chronograph movements, and therefore most watches featuring it...
2