ERIKA JOHNSON, MOUNT-MAKER

We are unable to display Erika's portfolio demonstrating 8 years of mount work at this time. If you provide us with an email address, we can privately send her resume. Our apologies for the inconvenience.

In the meantime, we hope that the work she did at the Arcadian Clock Co. can appropriately demonstrate her design and metalworking skills.

Courtesy of the Arcadian Clock Co.The Arcadian W Precision Regulator, Erika Johnson (under the guidance of David Munro) — Courtesy of the Arcadian Clock Co.
The Arcadian W Precision Regulator, Erika Johnson (under the guidance of David Munro)

This skeletonized timepiece features an engraved aluminum dial with shaped torch-blued hands.

Courtesy of the Arcadian Clock Co.The Arcadian R Astronomical Regulator, Erika Johnson (under the guidance of David Munro) — Courtesy of the Arcadian Clock Co.
The Arcadian R Astronomical Regulator, Erika Johnson (under the guidance of David Munro)

The Arcadian R Astronomical Regulator features a split impulse deadbeat escapement with sapphire pallet jewels. Each face of the steel escapement wheel has been polished to a high finish.

Courtesy of the Arcadian Clock Co.The Remontoire Regulator, Erika Johnson (under the guidance of David Munro) — Courtesy of the Arcadian Clock Co.
The Remontoire Regulator, Erika Johnson (under the guidance of David Munro)

This 2/3 second pendulum adjusts for temperature differences through Garnier's "dumbbell" system of bimetallic compensation. As the central steel rod expands with an increase in temperature, the brass side rods extend further, raising the pivoted compensation weights. The weights can be moved to adjust the compensation. The solid brass beat scale is a separate element, engraved on the pendulum circumference.

Courtesy of the Arcadian Clock Co.The Chesworth Regulator, Erika Johnson (under the guidance of David Munro) — Courtesy of the Arcadian Clock Co.
The Chesworth Regulator, Erika Johnson (under the guidance of David Munro)

This suspension detail highlights .001" machining accuracy and hand-lapped finishes. The whimsical keyhole opening for the verge is a functional flourish for an otherwise serious clock.