IWC Calatrava R810A C.8541 35.0mm 1967

The ultimate all rounder piece, with its clean faceted lugs and pristine sunburst dial in perfect condition. Paired with the sharp steel hands and matching steel indices, making the ultimate watch for everyday use or even the more dressier occasions. An absolute classic must have for every discerning collector.

In addition, this timepiece comes freshly serviced with all parts laid out by our professional watchmaker for all to see in the images above. Little to no other dealers do this and it’s a testament to full transparency here at Montre D’or. With the C.8541 in this R810A running excellently as shown in the timegrapher reading above, just like it was when it left the factory nearly half a century ago.

DIAL:

• Original silver sunburst dial in excellent condition (no lume, crisp contrast)

• Steel faceted syringe‑shaped hands

• Applied IWC logo at 12 and original wording at 6

CASE:

• Classic Calatrava dress‑watch styling with slim bezel and elegant lugs

• 35.0mm diameter (excluding crown) / 41.0 mm lug‑to‑lug / 10.0mm thickness

• Professionally polished, sharp angular lug bevels retained

• Original IWC crown at 3 o’clock with fish logo

CASEBACK:

• Snap‑on caseback, with a mix of brushed and polished surfaces

• Clean condition, professionally polished to perfection

• Comes with plastic protective sticker as shown

MOVEMENT:

• IWC Caliber 8541 – automatic with Pellaton winding system

• 21 jewels / 46 hour power reserve / 19,800 A/h frequency

• Movement freshly serviced and in excellent condition

• Last serviced: August 2025

• Accuracy: +3.0s/day

STRAP:

• Handmade Black Ostrich Leather Strap, 18mm lug width

• Aftermarket IWC-signed stainless steel buckle

AFTERCARE PACKAGE:

• Comes with a black wooden box + silica gel

• Free PolyWatch Acrylic Crystal Polishing kit

• Warranty/Service history card for easy future sale

• 1‑Month warranty (non‑user damage)

• Exclusive Post‑warranty service access

• 7‑day return policy for peace of mind

SPECIFICS:

Maker: IWC (International Watch Co.)

Model: Calatrava

Reference: R810A

Case Material: Stainless steel

Year of Manufacture: 1967

Serial Number: __

Caliber: IWC Cal. 8541 automatic Pellaton movement

Movement Type: Automatic

Power Reserve: ~46 hours

Accuracy: +3.0s/day

Diameter: 35.0 mm

Lug to Lug: 41.0 mm

Thickness: ~10–11 mm

Lug Width: 18 mm

Lume: None

Bracelet: New black leather strap, aftermarket

Box and papers: None original (see aftercare package)

Crystal: Domed acrylic, IWC‑signed

Crown: IWC signed with fish‑logo

Last Service: August 2025

Free tracked shipping via SingPost. Delivery within Singapore in 2–3 working days. International shipping may take 4–16 working days depending on destination. Do note respective custom duties might apply.

This is a vintage timepiece and water resistance is not guaranteed. Please avoid contact with water or moisture. Store the watch with dry tissue or silica gel to preserve its condition. We are not liable for water damage post‑purchase.