IWC Calatrava Jumbo R804A C.8541 36.5mm 1968

Up for sale here is a highly sought after IWC model, the R804A Calatrava in Jumbo size of 36.0mm.

With its beautiful sharp dauphine hands and stunning near flawless white sunburst dial, it’s difficult to look away from such a stunning piece especially when it plays in the right lighting. With its applied steel indices and the matching black inserts, not to mention the small raised round minute markers around the track, the dial is truly a spectacle on its own.

The case comes in a much sought after 36.5mm diameter. Which would be regarded as a “Jumbo” size due to it being larger than most men’s wristwatches of its era, the more common size being 34.0mm. The case comes in a beautiful high quality mirror polish in excellent condition. With crisp sharp edges on the lugs indicating a professional polish.

At the 3 o’clock position sits the iconic fish logo crown, used to indicate its water resistance with the use of a rubber gasket compared to other non-fish logo IWCs. Turning over the watch one would find a crisp simple yet elegant brushing on the caseback.

Opening up the inside one would be able to see the beautiful C.8541 Automatic movement. Freshly serviced in March 2025, the movement runs at an excellent ~0s/day. Which for a watch of this age is extremely accurate and nearly on par with modern watches of today. 

To top it all off the watch comes on a beautiful black crocodile leather strap with aftermarket IWC signed stainless steel clasp

What we offer:

1: Condition

• All watches come in the best condition possible, with no over-polished round edges and no movement left unserviced. Condition is the top priority

2: Full Transparency

• Seeing is believing, all watches will have both their inner and outer parts laid out for our customers to see, so they know that is exactly what they get. No other watch dealer gets as transparent as this
• If you’re based in Singapore, drop us a message on our Instagram to arrange a private in person viewings to see your watch in person before making a purchase

3: 100% Satisfaction Rate

• With not a single bad review on all platforms, we let our customers speak on our behalf. Checkout all of our reviews on our Instagram Highlights.

4: Quality Packaging

• We care about our watches, hence all watches come in a sleek black wooden box. Perfect for gifting or storage. (Unless watch has its original packaging)
• Additionally, it comes with a complimentary Silica Gel packet to ensure no moisture gets into your watch

5: Premium Aftercare

• All watches sold with an Acrylic crystal come with a PolyWatch polishing kit to help you take care of your timepiece 
• Not applicable for watches with sapphire or mineral glass crystals

6: 1-Month Warranty

• All watches come with a one month warranty from the date of purchase
• Warranty is only applicable to non-user caused damages, more details at the footer of our website

7: Exclusive Repair Service

• A service only offered to our clients, even after your warranty ends
• We offer watch repair services by professional watchmakers far below what brands charge for repair
• Message @montre.dor on Instagram or email us at montre.dor22@gmail.com with details of the watch and proof of purchase

8: 7-Day Return Policy

• Buy in confidence with our 7-Day Return Policy, which gives you no reason to fear a broken or unauthentic watch.
• More details at the bottom of our website

9: Open Communications

• Help is always one text away, message us on any of our social media platforms or send us an email for queries

10: In-Person Deals

• In Singapore? Interested buyers can feel free to arrange a physical deal to help you choose between watches or see your watch in person before making a purchase
• Message us on Instagram to arrange one

Free shipping is provided via SingPost with tracking. Will take 2-3 working days to deliver domestically in Singapore. Overseas locations may take anywhere between 4-16 working days depending on the location, shipping will also be done via SingPost.

As this watch is a vintage watch, we will not be able to guarantee its water resistance. Hence it is best to keep the watch away from any form of water and humidity, and store the watch with a dry tissue paper or silica gel packet nearby to draw moisture away from the watch. We will not be liable if any water damage is done to the watch after purchase.

Specifics

Maker: IWC 

Model: Calatrava

Year: 1968

Case Material: Stainless Steel

Reference: R804A

Case Serial number: 1875585

Movement Serial number: 1854925

Caliber: C.8541

Diameter: 36.5mm

Lug to lug: 44.0mm

Lug width: 18.0mm

Thickness: 9.0mm

Lume: NIL

Bracelet/strap: Crocodile leather strap

Clasp: Aftermarket IWC stainless steel clasp

Box and papers: NIL

Accuracy: ~0/day

Movement type: Automatic 

Crystal: Original IWC Domed acrylic 

Crown: Original Stamped IWC fish logo 

Last service: March 2025