watchOS 3.2.3 (build 14V753) is an official Apple over-the-air update for the Apple Watch Series 1 (38mm), released on 2017-07-19T17:01:40Z. The update package is 976.73 MB. This is a full OTA update that can be applied from any compatible base version. This update is currently signed by Apple, so it can be applied from Settings › General › Software Update.

Payload file: 35e984adc909bcdbc9902e8d2ae72f62f2d8dffd.zip.