Service: Hamilton Thin-o-matic Automatic Wristwatch with Caliber 73 movement (ETA 2520)

Introduction

The Hamilton Thin-O-Matic was introduced in the 1960s as part of Hamilton’s response to the growing demand for thinner, more elegant wristwatches. A large percentage of these models use Buren’s micro-rotor technology. But this particular model utilized the ETA 2520 full size rotor automatic.

Servicing

The oil in this movement was entirely dry and much of it was solidified. A cleaning by hand utilizing peg wood to polish the jewels proceeded chemical cleaning in a three solution machine. The acrylic crystal was polished, and it once again was keeping good time. Do you need your watch repaired? Please visit my homepage to get started.