IWC Cushion R814A Jumbo 36.0mm C.8541B 1971

An extremely rare vintage piece, made for the collector who looks for things that nobody has seen before. The IWC R814A cushion case makes the perfect blend of elegence and uniqueness. With fine curved polished lines mixed with a touch of brushing on the underside to maintain a discrete elegent texture. Truly a timepiece meant for the most unique of collectors, the ultimate conversation piece bound to intruige even seasoned collectors.

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.8541B caliber inside 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 vintage condition

• Gorgeous, stunning syringe-shaped hands with black inserts

• Applied hour indices with matching black inlays at the tips for legibility, slightly aged with time

• Applied IWC logo and original cursive wording

• Date window at 3 o’clock; semi-quickset action (Turn between ~23:45 and 24:00)

• Domed acrylic crystal, IWC-signed at center

CASE:

• Distinctive cushion stainless-steel case, Professionally polished while retaining all sharp edges

• 36.0mm (excluding crown) / 40.0mm lug-to-lug / 11.0mm thickness

• Excellent condition with crisp lines retained

• Original IWC “Fish”-signed crown at 3 o’clock

CASEBACK:

• Stainless-steel caseback with mix of brushed and polished surfaces

• Comes with plastic protective sticker as shown

MOVEMENT:

• IWC Caliber C.8541B – automatic with Pellaton winding semi-quickset date (Turn minute hand between ~23:45 and 24:00 to hop date by one)

• 25 jewels / 44hour power reserve / 19,800 bph

• Movement freshly serviced and in excellent condition

• Last serviced: February 2026

• Accuracy: +4.0s/day

STRAP

• Handmade black Ostrich leather strap, 18.0mm width

• Aftermarket stainless steel IWC-stamped buckle

AFTERCARE PACKAGE:

• Comes with a black presentation box + silica gel

• Free PolyWatch Acrylic Crystal Polishing kit

• Warranty/Service history card for easy future sale

• 6-Month warranty (non-user damage)

• Exclusive Post-warranty service access

• 7-day return policy for peace of mind

SPECIFICS

Maker: IWC

Year: 1971

Case Material: Stainless steel

Reference: R814A

Movement Serial: 1990988

Case Serial: 2015238

Caliber: C.8541B (Pellaton, hacking, semi-quickset date)

Diameter: 36.0mm (without crown)

Lug to lug: 40.0mm

Lug width: 18.0mm

Thickness: 11.0mm

Lume: NIL

Strap: Handmade Ostrich Leather

Box and papers: NIL

Accuracy: +4.0s/day

Movement type: Automatic

Crystal: Original Domed Acrylic

Crown: Original IWC “Fish” crown

Last service: February 2026

Free express tracked shipping with signature upon delivery. Delivery within Singapore in 1-2 working days. International shipping may take 2–12 working days depending on destination and will be shipped via FedEx/UPS/Aramex.

Do note respective custom duties might apply which includes the recent US tariffs and are the buyer's responsibility.

Do note that for US bound shipments the PolyWatch polishing kit will not be included in order to mitigate customs delay due to new customs requirements

Countries that we do not ship to: Algeria, Nepal, Pakistan, Russia, Vietnam, Iran

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.