






HYDROCONQUEST
WATCHES
|
Wrist Size |
Watch Case Diameter |
Watch Case Thickness |
Strap Thickness |
|
13cm (5 inches) |
29mm - 32mm |
Below 10mm |
14.5mm - 16mm |
|
14cm (5.5 inches) |
32mm - 34mm |
10mm - 12mm |
16mm - 17mm |
|
15cm (6 inches) |
34mm - 36mm |
12mm |
17mm - 18mm |
|
16.5cm (6.5 inches) |
36mm - 38mm |
12mm |
18mm - 19mm |
|
17.5cm (7 inches) |
39mm - 42mm |
12mm |
19.5mm - 21mm |
|
19cm (7.5 inches) |
43mm - 46mm |
14mm |
21.5mm - 23mm |
|
20cm (8 inches) + |
47mm + |
15mm + |
23.5mm + |
Detailed product information and purchasing advice. Our customer service experts are always at your disposal.
CONTACT A PERSONAL ADVISOR
CONTACT
If you need detailed information about a product or if we can help you in any way please contact us, an advisor will be happy to attend you personally.
The 2026 Longines HydroConquest 42mm automatic defines prestige through a bold stainless steel and ceramic construction designed for a confident sense of taste. Deep black dial illuminated by Super-LumiNova, powered by calibre L888.5 with 72h reserve and silicon balance spring. 300m water resistance with rotating bezel.
Reference: L3.788.4.70.6
Choose options







WATCHES
|
Wrist Size |
Watch Case Diameter |
Watch Case Thickness |
Strap Thickness |
|
13cm (5 inches) |
29mm - 32mm |
Below 10mm |
14.5mm - 16mm |
|
14cm (5.5 inches) |
32mm - 34mm |
10mm - 12mm |
16mm - 17mm |
|
15cm (6 inches) |
34mm - 36mm |
12mm |
17mm - 18mm |
|
16.5cm (6.5 inches) |
36mm - 38mm |
12mm |
18mm - 19mm |
|
17.5cm (7 inches) |
39mm - 42mm |
12mm |
19.5mm - 21mm |
|
19cm (7.5 inches) |
43mm - 46mm |
14mm |
21.5mm - 23mm |
|
20cm (8 inches) + |
47mm + |
15mm + |
23.5mm + |







