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Please be advised, Lee Causer and Benjamin Peterson of BDO LLP have been appointed as Joint Administrators of C.W. Sellors (Gold and Silversmiths) Limited and Cressbrook Investments Limited (‘the Companies’) on 13 January 2026.

The affairs, business and property of the Companies are being managed by the Joint Administrators. The Joint Administrators act as agents of the Companies and without personal liability.

The business continues to trade, but please note that we are unable to accept online orders.

Orders can only be placed in person at the following store locations:
C.W. Sellors - 2 Victoria Square, Market Place, Ashbourne, DE6 1GG. Tel: 01335 342002
C.W. Sellors - 5 Royal Oak Place, Matlock Street, Bakewell, DE45 1EE. Tel: 01629 812155
C.W. Sellors - 10 The Square,
Shrewsbury, SY1 1LA. Tel: 01743 213476
C.W. Sellors - 8 Crown Square,
Matlock, DE4 3AT. Tel: 01629 581878
W Hamond - 9 Shambles,
York, YO1 7LZ. Tel: 01904 632059
W Hamond - 112 Church Street,
Whitby, YO22 4DE. Tel: 01947 603330

We appreciate your understanding and continued support during this time. If you have any questions, please contact us at sellors@bdo.co.uk
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Sinn Watches Worn During Helicopter Extreme Testing

 

Sinn watches were worn by pilots during the extreme testing of a high-performance helicopter.

In July 2012, Sinn announced the development of a Technical Standard for Pilot's Watches (TeStaF) in collaboration with the FH Aachen University of Applied Sciences. TeStaF is a certification for watches that can sustain the substantial physical stress of flight and meet the functional requirements of pilots.
TeStaF investigations were carried out during the flight tests of the EC145 T2, Eurocopter's new high-performance helicopter. Pilots aboard the helicopter wore Sinn EZM 10 and 103 Ti Ar watches - the first models from any brand to meet the strict TeStaF criteria.
The EC145 T2 is a civil multi-mission and rescue helicopter, and was required to undergo testing in extreme environmental conditions to prove that it could be deployed anywhere in the world. The helicopter was equipped with a measurement system that included over 400 sensors, with data monitored online by engineers in the ground station.
A hot climate test was carried out at Lake Havazu in Arizona, USA, with outside temperatures reaching 50°C and cockpit temperatures up to 60°C. Altitude testing was carried out in Leadville, Colorado, at North America's highest airfield (9,927 ft above mean sea level). Testing then moved to Inuvik, Canada, for cold climate testing. Temperatures in Inuvik are as low as -40°C, and it is almost impossible to survive outdoors without proper equipment. Cockpit temperatures were below -30°C during this stage of the testing.

The Sinn EZM 10 and Sinn 103 Ti Ar were worn throughout each test, and maintained the same high performance throughout. During the cold climate tests, for example, the watches were worn unprotected outside the pilot's overalls.
"The innovative engineers of Eurocopter and Sinn Spezialuhren have once again developed products which offer maximum mission and functional reliability," the brand says. "Equipped with the latest technology, they proved their worth in heavy-duty use under extreme conditions."

Following the tests, the EC145 T2 helicopter was approved for a temperature range of -40°C to 50°C, and a maximum altitude of 20,000 ft.
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