Esterbrook Camden Fountain Pen, Aluminium, Silver, E906 Nib Size:F This brand was the creator

This brand was the creator of the alarm complication for wristwatches

Chronograph

As indicated by its name this line has a perpetual calendar and the date

Case back Screw-fastened Case Back Crystal Sapphire Glass Water resistant depth 5 atm Calendar type Day Strap Leather Band color brown Clasp type Buckle Country of Manufacture Germany Warranty 2 years

It features a small counter surrounded by its own dotted indices

Esterbrook Camden Fountain Pen, Aluminium, Silver, E906 Nib Size:F This brand was the creatorLine Camden Reference E906 Material Aluminum Color Silver Trim Stainless Steel Nib Stainless Steel Filling System Cartridge Converter Closing System Screw on Warranty 3 years Country of Manufacture United States of America