Sizes of Swiss and American watches
Sizes of American watches One legne = 2.258 mm One inch = 25.4 mm Size mm Size mm 18 45.7 6/0 25.4 16 43.1 8/0… Read More »Sizes of Swiss and American watches
Sizes of American watches One legne = 2.258 mm One inch = 25.4 mm Size mm Size mm 18 45.7 6/0 25.4 16 43.1 8/0… Read More »Sizes of Swiss and American watches
Landeron 48 is Swiss movement from 1960’s. There are two options with 30 and 45 minutes indication on the chronograph. 2 registers on the dial… Read More »Landeron 48 Movement specifications and photo
Balance wheel with hair spring A watch is a small sturdy machine for telling time, operated by a coiled-spring motor and controlled by the oscillations… Read More »How exactly watches work?
Landeron 149 and 189 is Swiss movements from 1960’s. There are two options with 30 and 45 minutes indication on the chronograph. 2 registers on… Read More »Landeron cal. 149 and cal. 189 movement specifications and photo
Landeron 187 is Swiss movement from 1960’s. There are two options with 30 and 45 minutes indication on the chronograph. 2 registers on the dial… Read More »Landeron 187 Movement Specifications and Photo
Addendum -The portion of a tooth of a wheel or pinionbeyond the pitch circle. Arbor – Axis of the balance wheel or mainspring barrel. Balance… Read More »Glossary of Terms – Watches
Venus 150 is Swiss movement from 1960’s. There are two options with 30 and 45 minutes indication on the chronograph. 2 registers on the… Read More »Venus 150 movement specifications and photo
Landeron 151 is Swiss movement from 1960’s. There are two options with 30 and 45 minutes indication on the chronograph. Manual-winding movement with 17 jewels.… Read More »Landeron 151 movement specifications and photo
Venus caliber 210 is Swiss movement from 1950’s. Functions: 2 registers on the dial – 60 seconds and 30 minutes , sub second, cam switched. Manual-winding movement with 17 jewels. f =… Read More »Venus 210 movement specifications and photo
1970 was a year of great ups and downs for the mechanical chronograph. The vaunted Omega Speedmaster helped bring the crippled Apollo 13 space capsule… Read More »Valjoux 7750 History