
HOW Do I Read A Tachymeter / Telemetre?
General information on Chronograph and Telemeters and how they work: Many chronograph models are equipped with the tachymeter scale on...

Vintage 1972 "Pogue's" Seiko 6139 (in the shop)
The First Automatic Chronograph to be Worn in Space. Aviation and space exploration have long been the stuff dreams Timepieces have, of...