Last Manner x Hassler Instruments Spring Bar Tool — Brass
A bolt-action spring bar tool from Hassler Instruments, hand-machined from solid brass in a Last Manner exclusive edition with lathe-turned grips and the Last Manner torch logo.
Complimentary U.S. Shipping $100+ | International $350+
Spring bar tools are almost universally an afterthought — flimsy, unbalanced, easy to slip. Tom Bushey of Hassler Instruments built this one as if it were the tool itself that deserved the same care as the watch on your wrist.
The bolt-action mechanism at the mid-body retracts the Bergeon 6767-AF fine fork tip when not in use, protecting it between strap changes.
A second Bergeon 6767-BF fine pin tip is stored under the screw cap for bracelet clasp resizing or drilled-lug work. The solid brass construction gives it a weight and stability that makes precision feel possible.
This edition is small batch, individually numbered, and made to order in St. Paul, Minnesota.
- Solid brass construction.
- Bolt-action mid-body retracts and protects the spring bar tip.
- Includes Bergeon 6767-AF fine fork tip.
- Includes Bergeon 6767-BF fine pin tip under screw cap.
- Lathe-turned grips and Last Manner torch logo on end cap.
- Individually numbered.
- Made in St. Paul, Minnesota, USA.
- Presented in a Hassler Instruments box with a Last Manner velvet pouch.
Dimensions: ~5.5" x 3/8" diameter
We ship using USPS and UPS, depending on the destination and the products ordered. All shipments include tracking and up to $200 of insurance.
Complimentary Shipping Thresholds:
- USPS Ground Advantage (U.S.): Complimentary on orders over $100.00.
-
UPS International: Complimentary on orders over $350.00.
- Please note: Duties, taxes, and import fees may apply at delivery and are the responsibility of the recipient.
Shipping Times:
- Most items ship within one business day (Monday to Friday, excluding holidays).
- Orders placed by 2 PM Pacific Time often ship the same day.
Additional Notes:
- Fine art pieces valued over $500 ship separately via complimentary UPS Expedited insured service with adult signature required. Split shipments will be dispatched simultaneously.
- While we offer insurance on your shipments, once a package is marked “delivered,” insurance no longer covers theft or loss. Please deliver to secure locations or ensuring someone is available to receive your package.
- Shipping costs are non-refundable.
International Orders:
- For international orders, customs duties and import taxes are determined by your destination country and collected by the carrier upon delivery — they are the responsibility of the recipient.
- Customers remain responsible for ensuring the items ordered are legal to import and possess in their country. Items rejected or seized by customs due to import restrictions are not the responsibility of Last Manner.
- We do not ship knives internationally.
- We ship UPS only.
For our full shipping policy, please see shipping policies.
Returns are accepted within 30 days of receipt of your order, provided the merchandise is in its new, unused condition and includes the original packaging. Items that show signs of use, arrive without the original packaging, or received after the 30-day period will not be accepted.
Exceptions:
-
Lighters: We cannot accept returns for lighters that have been filled with fluid.
-
Brass/Copper/Bronze Products: Items that have had their vacuum seal opened or have been handled and exposed to oxidation are considered used and are not eligible for return.
- Art, Vintage & Gift Cards: Photographs, posters, gift cards, vintage artwork, vintage items, and "Bygone Goods" products are final sale.
Refunds to the original payment method will incur a flat $5 restocking fee, which will be deducted from your refund. Returns for store credit or exchanges are not subject to this fee.
For our full return policy, please see return policies.
Choose options
Last Manner Works
Last Manner Works is our in-house label for products designed and developed by Last Manner — whether built in partnership with trusted makers or produced entirely under our direction. Every Last Manner Works piece bears our mark because we had a direct hand in its creation: the brief, the materials, the details. These aren't off-the-shelf products with a logo added. They're built from the ground up to reflect what Last Manner stands for.
Hassler Instruments
Founded by Tom Bushey in St. Paul, Minnesota, Hassler Instruments is named after Ferdinand Hassler — the Swiss-American mathematician and surveyor appointed as the first Superintendent of the U.S. Coast Survey in 1816, renowned for designing the precision instruments he used in the field. That same spirit of purposeful, hands-on instrument making lives in every Hassler tool today. Each piece is made to order on manually operated machine tools and finished by hand in the St. Paul workshop.
For a deeper look...
A luxury tool for your luxury watch: Hassler Instruments
A luxury tool for your luxury watch, Hassler Instruments combines Swiss-grade precision with minimalist elegance. Designed for discerning collectors, each tool is crafted to elevate the experience of strap changes and watch maintenance — transforming routine care into a refined ritual.
