![Bring a Loupe: An Affordable Eberhard Calatrava, An Unusual Square-Cased Rolex, And A Pristine Sinn Ref. 103A Chronograph - Hodinkee Bring a Loupe: An Affordable Eberhard Calatrava, An Unusual Square-Cased Rolex, And A Pristine Sinn Ref. 103A Chronograph - Hodinkee](https://hodinkee-production.s3.amazonaws.com/uploads/images/1535057612266-8rc3rtb0her-dce8a7e754c79cc8e59e005eab13f94e/fourtane_02202016_36259_0001.jpg)
Bring a Loupe: An Affordable Eberhard Calatrava, An Unusual Square-Cased Rolex, And A Pristine Sinn Ref. 103A Chronograph - Hodinkee
![Rolex 18K YG so called "Square Bubbleback" circa 1940's at 1stDibs | rolex square watch, square rolex watch, rolex square watch men's Rolex 18K YG so called "Square Bubbleback" circa 1940's at 1stDibs | rolex square watch, square rolex watch, rolex square watch men's](https://a.1stdibscdn.com/archivesB/jewelry/15/60/31908bw.jpg)
Rolex 18K YG so called "Square Bubbleback" circa 1940's at 1stDibs | rolex square watch, square rolex watch, rolex square watch men's
Rolex Lady's Yellow Gold Square Mesh Bracelet Wristwatch at 1stDibs | rolex square face ladies watch, rolex oyster perpetual square face, rolex mesh bracelet
![Rolex, 'Square', case No. 875023, Ref. 8813. Made in the 1940s. Fine, square, gold filled wristwatch with a gold-plated Rolex buckle. To be sold without reserve | Important Modern and Vintage Timepieces Rolex, 'Square', case No. 875023, Ref. 8813. Made in the 1940s. Fine, square, gold filled wristwatch with a gold-plated Rolex buckle. To be sold without reserve | Important Modern and Vintage Timepieces](https://antiquorum-swiss-assets.s3.us-west-2.amazonaws.com/images/249/lots/112/112.jpg)