IWC Calatrava Roman Dial Ref.1818 C.8541B 35.0mm 1975

With barely any other examples of this watch up for sale, this extremely collectible IWC Calatrava Ref.1818 with a rare white painted dial is the perfect classy watch every collector needs. Powered by the legendary C.8541B Pellaton winding movement, the watch runs at an excellent rate and is ready to be worn at the fanciest of events.

Well balanced at 35.0mm in diameter and sporting a sleek high polished stainless steel case, this IWC gives the perfect elegant silhouette thats just the right size to not be overbearing on the wrist. 

DIAL

• Original white painted dial with black Roman numerals

• Black painted stick hands, perfectly matching numerals

• Date window at 3 o’clock, framed in black

• No luminous material, consistent with the era's design preferences

CASE

• Stainless steel case in excellent condition, professionally polished while retaining sharp edges

• 35.0mm diameter / 42.0mm lug-to-lug / 10.1mm thickness

• Original IWC fish-signed crown at 3 o’clock, indicating water resistance matching standards of the time

CASEBACK

• Snap-on caseback, consistent with vintage IWC designs

• Serial number engraving at 6 o’clock, legible upon close inspection

MOVEMENT

• IWC Caliber 8541B – Automatic

• 25 jewels / 42-hr power reserve / 19,800vph

• Features IWC's patented Pellaton winding system, known for its efficiency and durability. Freshly serviced before sale 

• Last Service: June 2025

• Accuracy: +1.0s/day

STRAP

• Aftermarket black Ostrich leather strap, 18.0mm lug width

• Aftermarket stainless steel IWC buckle

AFTERCARE PACKAGE

• Comes with a black wooden box + silica gel

• Free PolyWatch kit (for acrylic crystal only)

• 1-month warranty (non-user damage)

• Warranty card included with service history details

• Exclusive repair service post-warranty

• 7-day return policy for peace of mind

SPECIFICS

Maker: IWC

Model: Calatrava

Reference: 1818

Case Material: Stainless Steel

Year: 1975

Case Serial Number: 2115111

Movement Serial Number: 2125153

Caliber: IWC C8541B

Movement Type: Automatic

Power Reserve: 42 hours

Accuracy: +1.0s/day

Diameter: 35.0mm

Lug to Lug: 42.0mm

Thickness: 10.1mm

Lume: None

Strap:Aftermarket Black Ostrich Skin Strap

Buckle: Aftermarket IWC stamped buckle

Box and papers: NIL

Crystal: Original IWC Domed Acrylic

Crown: Original IWC fish-signed crown

Last Service: June 2025

Free shipping is provided via SingPost with tracking. Delivery will take 2–3 working days within Singapore. For overseas customers, shipping may take between 4–16 working days depending on your location, and will also be handled via SingPost.

As this is a vintage watch, we cannot guarantee water resistance. We strongly recommend keeping the watch away from any form of water or humidity. When storing, place it near a dry tissue paper or silica gel packet to help absorb moisture. We will not be liable for any water damage incurred after purchase.