Identification
- Brand
- Rolex
- Model
- Datejust 31
- Reference
- 178240
- Year of production
- 2020
- Gender
- Woman
- SKU
- AD10001








Margin scheme under Section 25a UStG · Insured shipping included
Rolex Datejust 31 Steel 178240 - 2020
Cologne Watch Düsseldorf
Schadowstraße 11
40212 Düsseldorf
Germany
Cologne Watch Köln
Benesisstraße 24-32
50672 Köln
Germany
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Description
The Rolex Datejust 31 with reference 178240 from 2020 embodies the versatile midsize model from the Geneva manufacture in a timeless, flawless stainless steel look. With its balanced case diameter of 31 mm, this reference bridges the gap between the smaller Woman models and the classic Men models. The 2020 production year marks the final production year of this extremely popular generation of Ref. 178240, before it was completely replaced by the newer 278xxx references. Equipped with the domed bezel, the proven Calibre 2235 and steel elegance, it is regarded as a reliable everyday dress watch classic.
Confident 31 mm midsize case made of Oystersteel: Crafted from high-strength 904L stainless steel (Oystersteel), the harmoniously proportioned case impresses with finely mirror-polished flanks and satin-finished surfaces.
Smooth, domed stainless steel bezel: The high-gloss polished, domed bezel stylishly frames the dial, gives the watch a clear, purist profile and underscores its sporty-elegant character.
Versatile dial selection with Chromalight or Super-LumiNova® luminescence: Available in timeless dial variants such as Pink, Silver, Black, White or with Roman or Arabic appliqués. The applied indices and hands are made of 18-karat White Gold to permanently prevent tarnishing.
In-house Woman manufacture Calibre 2235 (COSC-certified): Inside, the proven automatic movement operates with either the antimagnetic Syloxi silicon hairspring or the Breguet hairspring. It offers a power reserve of approximately 48 hours and guarantees the highest chronometer precision (-2/+2 seconds per day).
Scratch-resistant Sapphire Crystal with Cyclops lens: A flat Sapphire Crystal protects the dial flawlessly. The magnifying Cyclops lens over the 3 o'clock window enlarges the date display two and a half times.
Confident water resistance (100m / 10 ATM): The screw-down Twinlock winding crown with its double sealing system and the hermetically screwed case back reliably protect the movement against moisture and dust.
Oyster or Jubilee bracelet in Oystersteel: The reference is worn either on the three-row Oyster bracelet with polished center links or on the iconic five-link Jubilee bracelet. The Oysterclasp folding clasp is equipped with the practical Easylink extension system (+5 mm).

Specifications
Rolex Knowledge
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What you will receive
Before delivery, our watchmakers check every watch for authenticity, function and condition.
Datejust 31 comes with its original box and original papers.
12-month Cologne Watch warranty on movement and functionality – in addition to your statutory rights regarding defects.
Shipping is fully insured, with tracking and personal handover.
For online purchases, you can return the watch within the statutory withdrawal period.
On request, we hand over the watch in person at Cologne Watch Düsseldorf.
Locations
This watch is available at Cologne Watch Düsseldorf – feel free to visit us in person.
Before purchase
Alternatively, you can view and purchase your desired watch directly at our store in Cologne or Düsseldorf.
Yes, we guarantee the authenticity of every watch 100%. Each watch is thoroughly inspected by our experts for authenticity and functionality before sale. You will, of course, receive a proper dealer invoice with complete documentation.
All watches are technically inspected and professionally refurbished where necessary. Please refer to the condition description in the product details for the exact cosmetic and technical condition.
Whether the original box and papers are included is stated in the product details for each watch. Regardless, you will of course always receive a proper dealer invoice with complete documentation for your watch.
Every watch comes with a 12-month warranty covering the movement. In addition, you are of course fully entitled to your statutory warranty rights.
We accept the following payment methods:
Yes, we accept luxury watches from renowned brands as trade-ins. Contact us with details about your watch (brand, model, condition, accessories), and we will make you a fair offer that can be credited against the purchase price.
Yes, every watch is shipped fully insured via UPS Express or FedEx. We assume full responsibility until the watch has arrived safely with you.
Within Germany, 1–3 working days (free shipping). Within the EU, 2–4 working days. Internationally, 2–5 working days. Shipping costs for the EU and international destinations are calculated at checkout.
Yes, we ship worldwide via FedEx. Please note that import duties may apply, the amount of which is beyond our control.
Yes, visit us in Cologne (Benesisstr. 24–32, 50672 Cologne) or Düsseldorf (Schadowstrasse 11, 40212 Düsseldorf).
Yes, the 14-day right of withdrawal applies to online purchases. You may return the watch within 14 days without giving a reason. Please contact us in advance so that we can arrange insured return shipping for you. You can find all the details in our information on the right of withdrawal.