






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 automatic 39mm in stainless steel and ceramic, a refined choice for connoisseurs of performance and taste. Black dial with Super-LumiNova, calibre L888.5 with 72h power reserve and silicon balance spring. 300m water resistance with unidirectional bezel.
Reference: L3.779.4.56.6
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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 + |







