Speedmaster 3861 micro-adjust clasp

[Filterlab]

I struck a bit lucky on eBay the other day. A brand new, unused micro-adjust push-button clasp for the 3861 appeared, so I popped a bid on it and won.

Mounted it today. It makes all the difference having that slight (5mm) adjustment for my wrist's variance in temperature.

I will say though that the bracelet on the 3861 is massively fiddly to adjust. The screws are so tiny, smaller than I've ever encountered on a bracelet. It's beautifully made though, as is the clasp.

If you have a 3861 without the micro-adjust, it's definitely worth sourcing one.

[Balance wheel]

I struck a bit lucky on eBay the other day. A brand new, unused micro-adjust push-button clasp for the 3861 appeared, so I popped a bid on it and won.

Mounted it today. It makes all the difference having that slight (5mm) adjustment for my wrist's variance in temperature.

I will say though that the bracelet on the 3861 is massively fiddly to adjust. The screws are so tiny, smaller than I've ever encountered on a bracelet. It's beautifully made though, as is the clasp.

If you have a 3861 without the micro-adjust, it's definitely worth sourcing one.

Ohh nice how much did you get that for? I brought on for my speedy and it’s a massive upgrade to the old bracelet

[Filterlab]

Ohh nice how much did you get that for? I brought on for my speedy and it’s a massive upgrade to the old bracelet

£185 including postage. He paid £227 for it and never used it.

You're right, it transforms the ease of wearability, and is superbly made.

[Rev-O]

Will this fit the Forstner or Uncle Seiko bracelets?

Looks like a top bit of kit

[Filterlab]

No idea to be honest. The aperture is 5mm so if the link join width is 5mm then it's a good start. The 3861 bracelet has 15mm links. The link type is a pin which is locked in be a screw each side.

[P9CLY]

Uncle Seiko actually offer the same clasp option for their 1479 bracelet.

[Rev-O]

Uncle Seiko actually offer the same clasp option for their 1479 bracelet.

Thanks. Pretty sure that doesn't have the micro-adjust mechanism though.

[P9CLY]

Thanks. Pretty sure that doesn't have the micro-adjust mechanism though.

Not the same but still adjustable.
For that look and still adjustable at a huge amount less...

Sent from my SM-A125F using Tapatalk

[Filterlab]

Oooh, that's a lovely bracelet. Does anyone own this and the original? Be nice to know how they compare.

I find the 3861 bracelet to be one of the very best I've ever seen on a watch. Like silk. Mind you, I haven't found an original bracelet for my IWC Mk XVI yet. I've heard they are astonishingly good.