Late 1960s-1970s Ref.R811AD 21 jewels Cal.8541B Automatic

The IWC Yacht Club Ref. R911A is a luxury automatic watch from the sports collection launched in 1967. It features a stainless steel case with a 36mm size, housing the durable Cal. 8541B movement with a hacking function. The silver-polished dial includes bar indexes, slender pencil hands, and a date display at 3 o'clock. Its design incorporates a fish-shaped crown for water resistance and a streamlined C-line shape. The watch comes with a third-party leather strap, blending vintage charm with modern elegance.

[Dial]

Light fading is observed. No significant damage is particularly noticeable. The letters are not faded or faded. The hands, indexes, and luminous material have deteriorated.

[Case/Back]

Scuffs, minor scratches, and light marks are observed. The back has opener marks. No major dents.

[Crystal]

Scuffs and minor scratches are observed. Visibility is sufficient when worn.

[Band/Buckle]

Both are third-party products. They show signs of use, but can be worn immediately.

[Operation]

The knob on the right side of the case is the crown. You can wind the watch manually in this position. This is an automatic watch. If the hands stop moving, gently shake the watch in your palm and manually wind the crown to ensure the hands are moving. To wind the crown, push it forward clockwise with the pad of your finger. Wind it as slowly and gently as possible.

Pull and turn the crown to move the hands and adjust the time. It has a hacking function (second hand stop).

The date is adjusted by turning the hand. It also has a quick change function.

[Accessories]

Main unit only.

Daily accuracy is within 60 seconds over 24 hours (though there may be some variation depending on the position when worn). The lug width is 18mm. The case diameter is approximately 36mm (excluding the crown), the length (lug-to-lug) is approximately 43mm, and the thickness is approximately 11.5mm.