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Collections
- Watches
- Watch Straps
About Us
- Design Journey
- Brú na Bóinne
Contact Us
- Enquiries
- Showroom
Shop

Contact

For inquiries please contact Bryan by email or phone.
Address:Kilgraney House, Bagenalstown, County Carlow, Ireland, R21 W527
Mobile:Int+353 (0)86 8205381
Email:info@sidereus.comOpens in your application

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sidereuswatches

Limited edition watches designed and hand-built in Ireland
Inspired by the origins of horology and marking time at Brú na Bóinne for over 5,000 years.

Cairn T at Loughcrew. Marking the Spring Equinox

Cairn T at Loughcrew.

Marking the Spring Equinox for over 5,000 years.

On the Spring Equinox sunlight enters the inner chamber and illuminates the magnificent rock art on the back wall stone.

#springequinox #springtime #markingtimeforover5000years #markingtime #markingtimeinireland #loughcrew #meath #originsofhorology #originsoftimekeeping #ireland

Forty Shades of Green. Wishing followers and frie

Forty Shades of Green.

Wishing followers and friends a Happy Saint Patrick's Day.

Many of our modern day festivals have their roots in Celtic tradition. The early Christian Church adopted many of their feast days to match the old Celtic festivals and traditions. The Celtic festival to celebrate the Spring Equinox became the Saint Patrick's Day we celebrate today.

However, the marking of the Spring Equinox pre-dates the Celts. The neolithic Cairn T at Loughcrew, or Sliabh na Caillí, Hill of the Crone in Gaelic marks the Spring Equinox when sunlight enters the inner chamber to illuminate magnificent rock art on the back wall..

The complex at Loughcrew, with almost 30 neolithic passage tombs, was built approximately 3,000 BC.

Today, over five thousand years later, we continue this long tradition of marking the Spring Equinox with a National Festival that is celebrated abroad as much as it is at home.

The year the Spring Equinox (or Vernal Equinox) in Ireland is 9.24pm on Monday March 20th.

Sidereus continues the tradition of marking time with a collection of limited edition timepieces that celebrate the origins of horology at neolithic sites at Loughcrew and Brú na Bóinne. Pictured is a Newgrange Moon Phase watch with Magee tweed strap.

#happysaintpatricksday #globalirish #springequinox #celtictraditions #loughcrew #fortyshadesofgreen
#shamrock #markingtimeforover5000years #markingtime #markingtimeinireland
#loughcrew #newgrange #knowth #dowth #brunaboinne #meath #ireland

Inspired by one of the oldest markers of time, the

Inspired by one of the oldest markers of time, the Newgrange tumulus at Brú na Bóinne.

Sidereus will be showcasing the Brú na Bóinne Collection of limited edition timepieces at WatchIt! Watch Fair on Saturday the 18th February 2023, from 11:00h to 17:00h at the Nutgrange Manor Hotel, Warwickshire, B94 5NL.

Presented by 12&60, WatchIt! Watch Fair is a one-day watch fair in the heart of the U.K, where you can view, handle, talk and buy watches in a friendly and relaxed atmosphere.

We look forward to seeing you there.

#inspiration #brúnabóinne #tumulus #newgrange #watchit #watchitwatchfair #12&60 #nutgrangemanor #warwickshire #watches #watchfair #watchmeetup #letstalkwatches #watchnerd #watchcollector #limitededitionwatches #britishwatches #britishwatchmakersalliance

WatchIt Watch Fair Spring is here and we kick off

WatchIt Watch Fair

Spring is here and we kick off 2023 with a watch fair and gathering in the heart of England presented by 12&60.

Sidereus Watches will be showcasing the Brú na Bóinne Collection of limited edition timepieces at the WatchIt Watch Fair at the Nuthurst Grange Manor House Hockley Heath, Warwickshire, B94 5 NL on Saturday the 18th February 2023.

Doors open at 11:00h until 17:00h

Hope to see you there.

#watchit #watchitwatchfair #22&60 #spring #brunaboinne #brúnabóinne #nuthurstgrangemanorhotel #warwickshire #midlands #heartofuk #britishwatchmakersalliance #britishwatches

WatchIt Watch Fair Spring is here and we kick off

WatchIt Watch Fair

Spring is here and we kick off 2023 with a watch fair and gathering in the heart of England presented by 12&60.

Sidereus Watches will be showcasing the Brú na Bóinne Collection of limited edition timepieces at the WatchIt Watch Fair at the Nuthurst Grange Manor House Hockley Heath, Warwickshire, B94 5 NL on Saturday the 18th February 2023.

Doors open at 11:00h until 17:00h

We hope to see you there.

#watchit #watchitwatchfair #22&60 #spring #brunaboinne #brúnabóinne #nuthurstgrangemanorhotel #warwickshire #midlands #heartofuk #britishwatchmakersalliance #britishwatches

Newgrange Moon Phase. Inspired by one if the olde

Newgrange Moon Phase.

Inspired by one if the oldest working timepieces in the world. Our watches honour the remarkable achievements of the Neolithic communities that settled at Brú na Bóinne, an area defined by a bend in the river Boyne in County Meath, Ireland.

This early agrarian community built vast constructs from stone and soil to capture significant points in the sidereal year.

Newgrange, the best known of the three major monuments found at Brú na Bóinne, marks the winter solstice at sunrise.

Our Newgrange Moon Phase watch celebrating the very origins of horology and the marking of time in Ireland for over 5,000 years.

Towards Longer Days and Shorter Shadows.

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