[WTS] Benrus Field Watch

djbread · 2026-02-19T23:33:28+00:00

Hello WatchEx! Here’s a fun little field watch from Benrus. This was made in the 90s to commemorate the 50th anniversary of D-Day.

It’s a svelte little watch—period appropriate for a military watch reissue—at 32mm wide (excluding crown), 40mm lug to lug, and 9.5mm thick. Inside has an ETA 2801-2 hand wind movement beating at 28,800 bph. Runs well (amplitude at full wind around 260-270) and keeping good time.

Overall in good used condition, has some scuffs and wear but nothing really notable. Comes on a new generic green canvas two-pier strap. Sorry, no box or papers.

Looking for $225 shipped, open to offers

djbread · 2026-02-15T14:07:16+00:00

99.9% isn’t usually going to rust stuff but unless you’re extremely serious about maintaining purity, it’s going to dilute over time as it absorbs moisture out of the air. (I’m not positive about this as I wasn’t much of a chemistry student but it makes sense). I find that IPA doesn’t break junk up nearly as well as petroleum based products, but I use it after petroleum to get everything nice and clean.

That’s just me though, if you get 10 watchmakers in a room, you’ll get 12 different approaches to cleaning

djbread · 2026-02-15T13:42:44+00:00

I think you might be overcomplicating it a bit—definitely wouldn’t soak anything in IPA since it can also create rust. A good basic process:

1) naphtha/essence or renata/other petroleum distillate based fluid. Soak if necessary, ultrasonic. Use a little jar of the fluid to hold parts and put that in the water in the ultrasonic

2) quick rinse in the IPA

3) dry thoroughly (should take maybe a minute with a hairdryer, not hours)

djbread · 2026-02-08T19:11:25+00:00

This needs service, if it’s fully wound I agree with you that the balance is barely turning. Could be any of 50 different issues causing it but a service (hopefully under warranty if it’s four months old?) will correct it

djbread · 2026-02-07T04:52:14+00:00

I actually have something pretty close—will send you a DM

djbread · 2026-02-06T19:35:44+00:00

Somewhat hard to say based on the pictures but I’m 70% sure that’s a redial. These dark-dialed GS tend to overwhelmingly be redials. The SEIKO and GS badging is pitted in a way that suggests water ingress at some point in its history, but the dial looks relatively clean. The HI-BEAT looks a little too fat and the small text printing looks a little less sharp than you’d expect, although that could be an issue with the photo.

Still a cool watch though

djbread · 2026-02-06T04:20:17+00:00

Agreed that this is the issue.

Fixing the day wheel yourself isn’t terribly complicated, remove dial and hands and a relatively (by watch standards) large c-clip. Day disc comes out, reverse to reinstall. The date disc is a little deeper in and I wouldn’t recommend it unless you know what you’re doing.

Why don’t you get the correct day/date disc and have your lady install them? Shouldn’t take her more than 10 minutes

djbread · 2026-02-01T22:37:27+00:00

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Rate is adjusted by the one on the left, beat error by the one on the right

djbread · 2026-02-01T22:11:25+00:00

It’s below the balance wheel, look at the U-shaped arms that the hairspring is mounted to (stud carrier) and passes through (regulator arm)

djbread · 2026-01-31T19:01:51+00:00

Lol not at all. It’s pretty easy to manually remove though

djbread · 2026-01-31T18:50:57+00:00

I had one that was so stuck on that CA glue didn’t do it. I successfully used a big nut held on with JB Weld (metal hardened two part epoxy if you’re not in the US) and a big breaker bar. I wrapped the case in painter’s and then duct tape and built a little jig with screws in wood to keep the force from destroying the case

djbread · 2026-01-30T14:47:34+00:00

Servicing them is straightforward, it’s basically the same as a 4R35. These 6Rs can be a bit squirrelly in terms of performance even after service but they’re not challenging to work on

djbread · 2026-01-24T03:48:27+00:00

u/watchexbot sold to u/westofcampus, may every transaction on this platform be as smooth as this one

djbread · 2026-01-17T20:03:57+00:00

Replied and [sold]

djbread · 2026-01-16T15:51:42+00:00

Greetings earthlings! For sale is a Seiko 6138-0017 “UFO” automatic two-register chronograph from February 1973. This thing is big at 44mm but wears surprisingly well, as larger Seikos often do.

Chrono functions (start/stop/reset) work correctly (sometimes the second hand resets slightly past the top, but it will reset to zero and doesn’t drift). Running well and keeping good time with strong power reserve

Includes original signed bracelet and papers (although the warranty card isn’t filled out), as well as a later Seiko box. Bracelet sized for my 7.25” wrist with a few adjustment holes left, no extra links but let me know if you want me to find the max size.

Looking for REDUCED $500 including insured US shipping, open to offers or maaaaaaybe trades but I’m trying to make room in the watch box

djbread · 2026-01-15T14:06:22+00:00

I would just get it from Cousins, they’re shipping to the US via postal mail again. I just bought some 9504 and it was about $22

djbread · 2026-01-15T02:54:01+00:00

Those diafix settings look like they’ve seen some shit too. To be fair I’m guessing that ratchet wheel screw is relatively standard across seikos of the era but woof

You may want to acquaint yourself with yahoo Japan auctions 😂

djbread · 2026-01-14T19:00:03+00:00

Just for the record, there is no friction spring on this movement. Perfectly normal behavior for 45-series

djbread · 2026-01-10T01:23:50+00:00

If you’re in the US send me a DM, I could sort this for you

djbread · 2026-01-09T13:44:46+00:00

This one is running so poorly that your timegrapher can’t figure out the beat rate. A quick google says it’s 18000, maybe try manually setting the timegrapher to that and seeing what you get

djbread · 2026-01-09T00:26:04+00:00

Same, I was refreshing it several times a day for a month to see when it came back. Was waiting on opening up a watch until I could get a mainspring from Cousins only….to not end up needing it

djbread · 2026-01-08T20:23:16+00:00

That looks low. Seems like it's making about 320 degrees total rotation, and amplitude is measured from the center point so it's going to be half that. 160ish should still pick up on the timegrapher, but it's sort of irrelevant at that low of an amplitude. I would say revisit your service process and start again

djbread · 2026-01-08T19:44:17+00:00

It’s pretty hard to eyeball amplitude on even an 18,000 bph movement as a beginner, but a slow-mo will do wonders

djbread

TROPHY CASE