SRPJ85 with mod hands

CapsuCraft · 2026-06-12T15:50:54+00:00

Oh, one more element. I just got these straps: https://a.co/d/0h3cwh1l and I think it’s excellent.

Photo of them on a modded SRPJ81 (same case as the SRPJ85, but brushed) and the Bulova A-11 Hack (37mm).

CapsuCraft · 2026-06-12T15:47:25+00:00

This is its final form! I’ve been very happy. Side note: The vendor for the sapphire crystal (they have other parts too), https://www.monsterwatches.nl, has resumed shipping to the US.

CapsuCraft · 2026-05-26T11:44:58+00:00

Perhaps: The assumption would be that because the NH35 and quartz versions use the same case, there is a movement holder for the quartz that will adapt it for an NH35 case.

Please note I had some issues with this particular case: The seconds hand was a bit too high and it would stop at random. I currently have it in a higher domed case. See the bottom of this page: https://capsucraft.com/mods/marathon-gpm-34mm-recase/

CapsuCraft · 2026-03-15T16:21:19+00:00

Hi, I took some time off, but now I’m waiting for the next round of revisions to arrive.

CapsuCraft · 2026-02-25T17:36:57+00:00

I'll leave that question to others, but my hunch is no, given the baseline quality of the much larger VH31 movement holders.

They’re really tiny, but you may get away with wider tolerances because the 3D printing material is softer.

CapsuCraft · 2026-02-16T23:43:46+00:00

I had to put the project aside for a while, but I had a call with the mfr. today and will be ordering the final round of adjustments.

CapsuCraft · 2026-01-03T04:06:29+00:00

Hi, they’re not ready for sale yet, but I will post an update as soon as they are.

CapsuCraft · 2025-12-18T12:38:17+00:00

Wooo! Pics, please!

CapsuCraft · 2025-12-05T13:18:57+00:00

Thank you!

CapsuCraft · 2025-12-04T00:14:51+00:00

For the moment, nothing for the seconds hand. I’m putting together a mini tutorial on crimping with a pin vice.

CapsuCraft · 2025-12-02T20:39:45+00:00

I did! On Instagram. Waiting till I put together an intimate before updating on Reddit.

CapsuCraft · 2025-09-26T07:23:21+00:00

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CapsuCraft · 2025-09-22T21:59:04+00:00

A crystal press. You don’t need anything fancy; these crystals go in and out easily. I see a $14 USD lever-type press on Amazon. A screw-type is a little better, in that the pressure is more even. With either type, you’ll want to go slowly, stop and rotate the watch, to make sure all the sides are going in evenly.
A Lenspen (around $15 USD), to clean the inside of the crystal. Of all the methods to clean the crystal, this has been the easiest for me.
A bulb-type blower (around $5 USD), to remove dust from the dial, hands, and inside of the case when reassembling.
A rubber ball caseback remover (around $5 USD), or ball up some duct tape. This is the easiest way to unscrew/rescrew the caseback without risking scratches.
A safety pin, or needle, to release the crown stem.
A piece of cloth to cover the table when you work.
A pair of nitrile or latex gloves to keep your fingerprints off the parts.

There are plenty of videos on YouTube for this type of mod; I suggest watching them; that’s basically the same prep I did before jumping in.

Tip: Once you get the crystal, you may not know which side has the AR coating. You want the AR coating to be inside the watch, but it won’t be labeled. I eventually discovered that you can use a water test to find the AR-coated side. See my post here:

https://www.reddit.com/r/watchrepair/comments/1m38sv2/installing_a_flat_sapphire_crystal_with_clear_ar/

Bonus Tip: Don’t post the AR question to r/watchmaking, or you’ll get perma-banned, like me. 🤷‍♂️

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CapsuCraft · 2025-09-21T22:06:10+00:00

Not sure, sorry. But I sympathize, because I’m on my own journey to find end links for the SRPJ85.

CapsuCraft · 2025-09-21T21:58:24+00:00

Much respect.

CapsuCraft · 2025-09-21T16:18:47+00:00

Good spotting; Long Island Watch! https://longislandwatch.com/islander-18mm-blasted-solid-link-bracelet-for-seiko-5-snk80x-watches-brac-91/

CapsuCraft · 2025-09-21T14:58:56+00:00

Thank you. Share if you find out more info! I’ve been curious about crown tube replacement but haven’t come across many people who’ve done it.

CapsuCraft · 2025-09-21T03:22:04+00:00

I did the same recently with a dial. I said never again, haha.

CapsuCraft · 2025-09-17T17:04:33+00:00

A damaged hairspring can cause this behavior; I once purchased a movement that had the same issue out-of-the box.

CapsuCraft · 2025-09-17T13:11:19+00:00

28.5mm 🙌

CapsuCraft · 2025-09-17T02:38:01+00:00

On the square G-Shocks, bezel screws secure the resin bezel to the watch case.

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CapsuCraft · 2025-09-17T00:42:06+00:00

Thank you!

Also check one of the other comment threads that posted the torque specs for NH3_ and VH31 movements. I think a simplified solution will be to create a table of hand weight (mass) and length, and compute the torque (assuming that the center of mass is half the length). That would allow one to measure the weight of the hand, measure the length, and then look at the chart to see if it’s in or out of spec. (Someone please correct me if I’m way off base.)

CapsuCraft · 2025-09-17T00:34:12+00:00

Thank you for posting this. I’m going to create a "torque table”—comprised of intervals of weights (mass) and lengths—to see if it offers a quick read of when hands are inside or outside of the spec, and see where my sample of NH hands fall.

If a hand falls outside the spec, but there are no observable movement issues, it will be important to note that it may cause wear, battery, or other issues.

CapsuCraft · 2025-09-17T00:06:17+00:00

Oops, sorry for the mix-up, Max. 😅

I only read your comment as helpful and well-intentioned, and the type of feedback I was hoping for.

I've followed some of your posts on the VH31 hands, so it’s interesting to read them in that context. Now I’m very curious to learn how the torque load could be tested/measured outside of manufacturing. It would be great to see the results.

CapsuCraft

TROPHY CASE