Based in County Carlow in Ireland, Sidereus was founded by product designers Bryan Leech and Martin Marley. The company produces limited edition timepieces with a unique Irish back story.

Introduced in 2019, Brú na Bóinne, their inaugural collection, was designed and developed in-house and features three contemporary watches that pay homage to the megalithic structures at Newgrange, Knowth and Dowth. All models are limited editions of 50 pieces with the limited edition number engraved into each case back. Limited edition number can be reserved at time of order, subject to availability.

Sidereus watches are hand-built to order, however, a small number of watches may be available for immediate purchase.

Contact details

Sidereus Watches
Kilgraney House
County Carlow
R21 W527
Official website: