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Sinn Watch 903 St B E Alligator

Sinn Sinn

903.045 Blue Alligator

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Available to order today for delivery:  2 - 3 Weeks


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Sinn Watch 903 St B E. 903.045 Leather

Possibly one of our favourite Sinn dress watches, this Sinn 903 ST B E watch has been manufactured in Germany with a stunning mix of stylish design tropes, an exquisite self winding mechanism and a luxurious leather strap. Having become famed for their fully equipped timepieces, the brand has enhanced this Sinn 903 ST B E watch hours, minutes and subsidiary seconds function, a date display at 4 o clock, chronograph function and an interior rotating bezel with logarithmic scale.

The Sinn 903 ST B E watch continues to impress with the SW 500 self winding movement, a calibre with 25 bearing jewels, 28,800 semi-oscillations per hour and a seconds stop function. The dial is also impressive using a high quality dark blue and ivory coated material and luminescent hands and appliques that have been meticulously attached by hand. Sapphire crystal glass with anti reflective treatment is used on the front and back of the watch enhancing protection and providing a stunning view into the automatic mechanism. This Sinn watch also comes with a 2 year warranty and a water resistant promise of 100 metres.





Sinn Official 2 Year Guarantee


Sinn Watch Packaging

Model No

903.045 Blue Alligator




Instrument Chronograph



Case Width


Case Material


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Delivery & Returns


In addition to our 30 day returns policy all items purchased
from 7th October 2021 may now be returned for either an exchange or
full refund up until January 14th 2022. Standard terms apply.


We offer a Free UK next day delivery service on all orders over £75, in stock items will be dispatched same day when ordered before 4pm. All items are dispatched using a Royal Mail fully tracked and signed for delivery service.

Alternatively you may choose to upgrade the delivery of your items to a priority service by selecting Pre-9am Royal Mail express delivery in the checkout.


We offer worldwide shipping, charges will be calculated in the checkout for deliveries outside of the UK.

For more information about our delivery services available, contact us on 01335 453453 or email us at sales@cwsellors.com.



Sinn Watches

Sinn Watches, founded in 1961, have long been a big name in horology. Originally focussing on aviation, the company produced navigation clocks for the cockpits of planes, and this history is present in even modern day timepieces from the brand.

With popular models, including the Sinn Instrument and the Rally Chronograph, Sinn watches are stylish, contemporary, but also innovative in their manufacturing and movements. The watches collected by many for their accuracy in extremely adverse conditions such as high speed, high altitude, extreme cold and magnetic interference.

Price Match Request

Sinn Watch 903 St B E Alligator - 903.045 Blue Alligator (SN-367)

RRP £3,125.00

As the UK's leading luxury watch retailer, we are committed to providing our customers with the best possible prices across our branded products. Our Price Match Promise guarantees that if you find any of our jewellery or watches at a lower advertised price elsewhere, we will provide an instant price match for you.

To request a price match on an item listed on our website, simply fill out our instant price match form below.

Please Note; We only match authorised stockists and genuine products. The stockist should have the item in question ready to order and in stock. C W Sellors reserves the right to refuse any price match request without reason.

Take great care when obtaining quotes from unauthorised retailer, whilst many retailers may appear to be authorised stockists, this may not always be the case. Sourcing product through unauthorised stockists means that their products will be supplied without an official valid branded warranty and there is no way of determining the authenticity of the product.

Contact our dedicated team of watch specialists today on 01335 216 004 or email us at sales@cwsellors.com to get your instant price match today.

For full terms and conditions click here.

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