- Schatz 49 listing: seller claims .0040 inch thickness and compatibility with specified Schatz, Wurthner and Herr movements; verify the exact movement.
- Galapagoz HS0032: seller-listed .0032 inch/.081 mm three-pack; movement compatibility is not established here.
- Galapagoz HS0023: seller-listed .0023 inch/.058 mm three-pack; thickness alone does not identify a match.
Quick picks
Three seller-listed packs: check the movement first
Mechanical basics
A thickness label is not a universal fit rule
Identify the movement and its suspension specification
Use the movement identity and its specified suspension spring or unit to select a replacement. The Horolovar repair guide description lists backplate identification illustrations and technical specifications for springs and suspension units. That does not establish a match for an unidentified clock or authenticate any marketplace offer below. A circular-wire diameter formula is not a selection method for an unidentified suspension strip.
Visible conditions to document before seeking repair advice
- Broken or kinked spring: photograph the damage and identify the specified replacement. A spring change is not a confirmed cure for every stopped pendulum.
- Corrosion or other visible spring damage: document its location. Do not assume a new spring alone will restore normal running.
- Shortened or previously altered spring: do not use the altered part as the sole reference for the required specification.
- Damaged blocks, fork or attachments: photograph the complete assembly. Check whether the required part is a bare spring or a complete suspension unit.
- Rubbing or irregular running: report what you observe to a clock repairer. These symptoms alone do not identify a spring, escapement or pivot fault.
Record the movement markings and photograph the backplate, pendulum and suspension.
Look up the specified spring or suspension unit before comparing packs.
Document visible damage without forcing the pendulum or reshaping parts.
Ask a clock repairer if the movement or required assembly cannot be identified.
Identification routine
Movement, assembly and measurement checklist
- Prepare tools and workspace
Use good lighting, a camera and a ruler for reference photos. For any spring measurement, use the instrument and method specified by the repair reference; do not assume a caliper can establish the required spring thickness.
- Photograph the whole assembly
Photograph the movement backplate, its markings, the pendulum and the suspension from both sides. Include a ruler where useful without disturbing the assembly. Keep these records with the identification and measurement checklist.
- Record the specified thickness and assembly dimensions
Record the spring thickness and suspension unit specified for the identified movement, with units. Measurements of the existing part can help compare it with that reference, but a shortened, damaged or previously substituted spring may not be a reliable specification.
- Document blocks, fork and attachments
Take close-ups of the upper and lower blocks, fork and attachments. Check which parts are included in the proposed replacement rather than assuming a bare spring is a complete unit.
- Record condition and label files
Note visible damage or previous alterations. Label the photos with the movement markings and any recorded measurements; keep removed parts identified if the repair procedure requires their removal.
Handling: do not heat, twist, bend or cut a spring to make an unverified part fit. Follow the identified movement’s repair procedure; ask a clock repairer when it is unclear.
Before ordering: confirm the nominal thickness, units, required assembly and included parts. Horolovar’s complete suspension unit includes a spring, upper and lower blocks, and fork, and is ordered by unit number. That manufacturer description does not establish the contents or compatibility of the Amazon packs below.
Schatz 49 pack
Schatz 49 listing: verify the exact movement
Seller-listed .0040 inch three-pack
The seller describes this three-piece pack as .0040 inch/.102 mm thick and 5-3/8 inches long, and names Schatz standard movements marked “49” in a circle, Wurthner standard 53 and Herr standard 53.
The listing uses the Horolovar name and a temperature-compensation claim, while the retained manufacturer field says JSORM. This page has not verified the maker, authenticity, temperature performance or delivered fit. Confirm the exact movement and supplied parts before ordering.
- Seller lists .0040 inch/.102 mm thickness
- Seller lists 5-3/8 inch length
- Seller names specific Schatz, Wurthner and Herr movements
- Three-piece pack stated in the listing
- Movement markings can be compared with the seller’s stated fit
- Exact movement and assembly must be confirmed
- Horolovar wording is not independent authenticity proof
- The retained listing does not offer 24 different strengths
- A spring pack does not establish a repair for other movement damage
Consider this pack only if the exact movement specification and seller-confirmed parts agree. The listing names Schatz 49, Wurthner standard 53 and Herr standard 53; that is not evidence of broad compatibility with German anniversary clocks or a reason to trial different strengths.
.0032 inch listing
Galapagoz HS0032: confirm the specified spring
Seller-listed .0032 inch/.081 mm three-pack
The retained Galapagoz HS0032 listing describes three .0032 inch/.081 mm suspension springs and states U.S. manufacture. It does not establish suitability for heavy pendulums, drafts, exposed displays or U.S.-made movements.
Horolovar’s separate .0032 inch manufacturer page lists named movements, including Kundo standard, Koma miniature 54, Reiner standard 56 and Jauch & Haller 56. That list belongs to Horolovar’s own product; it does not authenticate or establish compatibility for this Galapagoz ASIN.
- Seller lists .0032 inch/.081 mm thickness
- Three-piece pack stated in the listing
- Seller identifies model HS0032
- No movement match established for this offer here
- No verified draft or heavy-pendulum suitability
- Separate manufacturer specifications cannot be transferred to this ASIN
Choose Galapagoz HS0032 only after the seller confirms the required movement and assembly match. This page does not establish a timing change, greater durability or an advantage over the other packs from nominal thickness alone.
.0023 inch listing
Galapagoz HS0023: confirm the specified spring
- Seller lists .0023 inch/.058 mm thickness
- Seller identifies model HS0023
- Three-piece pack stated in the listing
- Nominal thickness is stated for comparison with the required specification
- No movement match established for this offer here
- Light pendulum weight does not establish compatibility
- Horolovar’s own product specifications do not authenticate this ASIN
Galapagoz HS0023 is a seller-listed .0023 inch/.058 mm pack, not a verified universal replacement for delicate pendulums. Horolovar’s separate .0023 inch product page explicitly says a Schatz 53 pendulum requires .0024 inch. This illustrates why the exact movement and pendulum specification matter; it does not establish a compatible Galapagoz substitute.
Repair alternatives
Common myths vs. realistic outcomes
This page has no model-specific procedure supporting re-tempering or twist-repair as a suspension spring repair.
Do not heat or reshape a spring to substitute for the specified replacement. Ask a clock repairer to identify the required part and assess visible damage.
A donor spring must be checked against the identified movement’s required specification and assembly. Similar appearance is not sufficient.
This page does not verify a donor part or a procedure for using it as a temporary or diagnostic substitute.
Cleaning alone does not establish that a damaged spring, suspension assembly or movement has been repaired.
Ask a clock repairer to inspect the clock and explain which parts or adjustments a proposed service includes.
Whether a conversion can be reversed or affects value depends on the clock and proposed work. No conversion kit or reversible procedure is verified here.
Request a specific repair and conversion proposal, including what would be removed or altered, before deciding.
Before deciding: obtain the movement identification, an assessment of the fault and a proposal describing the parts and work required.
If conversion is proposed, ask which original parts would be altered or removed and whether they can be retained. Compare the costs and the importance of keeping the original mechanism; no generic kit compatibility or reversible conversion is established here.
Use the convert or repair 400-day mechanisms decision summary to organize those questions.
Decision flow
Swap or call a clockmaker?
- Identify the movement and required spring or suspension unit before selecting a pack.
- Document visible damage; a stopped or irregular pendulum alone does not establish the fault.
- The three seller-listed packs are not a complete compatibility range or a performance ranking.
Order only when the identified movement specification and seller-confirmed replacement agree. If the required spring, assembly or repair procedure is unclear, ask a clock repairer. Discuss any proposed movement replacement or conversion separately, including changes to the original parts.
Checklist
Five immediate steps
- 1. Identify the movement
Photograph and record the backplate markings, pendulum and suspension assembly before selecting a spring.
- 2. Document the existing assembly
Keep clear photos of the blocks, fork, attachments and visible damage. Record measurements with units where the repair reference calls for them.
- 3. Verify the replacement specification
Compare the specified spring or unit with the exact seller listing. Do not choose among .0040, .0032 and .0023 inch packs by pendulum weight or by trial substitution.
- 4. Confirm the repair procedure
Use instructions for the identified movement and assembly. If they do not establish a safe installation procedure, ask a clock repairer before dismantling or fitting parts.
- 5. Follow the model-specific checks
Use the repair procedure’s operating and adjustment checks. This page does not establish a universal running-in period or a guarantee that a spring swap will correct the clock.
For valuable, historic, or complex movements, prefer professional servicing.
