Description
The Longines HydroConquest 42mm Black Dial represents the pinnacle of Swiss watchmaking heritage applied to professional diving instruments. Built for those who refuse to compromise between performance and sophistication, this quartz watch delivers exceptional reliability across any environment. Engineered with 300-metre water resistance and a unidirectional rotating bezel, the HydroConquest is purpose-built for serious water sports. The screw-in crown and screw-down case back provide the robust sealing required for demanding underwater conditions, whilst the 42mm case strikes a commanding presence on the wrist. The striking black dial offers excellent legibility, whether navigating ocean depths or boardroom meetings. Its modern aesthetic seamlessly transitions from adventure gear to refined everyday wear, making it the ideal choice for those who live between two worlds—one of exploration and one of elegance. A timepiece that honours Longines' 190-year legacy of precision whilst meeting the exacting standards of contemporary divers and watch enthusiasts alike.
Features:
Reference: L3.769.4.56.6
Calibre: L157.3
Movement: Quartz
Battery: RENATA 371 - SR920SW - 1.55V
Functions: Hours, minutes, seconds and date, E.O.L.
Dial: Black sandblasted
Bezel: Unidirectional rotating bezel
Crown: Screw-in crown
Thickness: 11.30 mm
Product Weight (Approx.): 162.0 g
Longines Watches are also available in our Ipswich and Windsor stores.
Specification
Shipping & Returns
We are proud to offer free UK delivery on orders of £101 and over placed on our website. Robert Gatward Jewellers currently only operates and supplies within the United Kingdom.
Orders placed before 12pm Tuesday–Friday will be dispatched the same day (stock permitting). Orders placed after 12pm on Friday through to Monday will be dispatched on Tuesday. If there is a specific day you would like to receive your order, please let us know as soon as you have placed it and we will do our best to accommodate.
Orders totalling £101 or more will be posted using Royal Mail Special Delivery. Orders totalling less than £101 will be posted using Royal Mail 1st Class Signed For Delivery (1–2 working days). Although next‑day delivery cannot be guaranteed with this service, the majority of these orders arrive the following working day, including Saturdays in many cases.
For delivery information regarding Engagement Rings, please click here.


