The Titanium Field GuidePicks of the month

Hublot Classic Fusion Chronograph Titanium 45mm

521.NX.1171.RX

The Hublot Classic Fusion Chronograph Titanium 45mm is a 45 mm Grade 5 titanium chronograph with an HUB1143 automatic movement.

All Hublot watchesChronograph watchesGrade 5 titaniumDisplay back
Price
$12,300
Material
Titanium
Grade / type
Grade 5
Water resistance
50 m
Reference
521.NX.1171.RX
Type
Chronograph
Case diameter
45.0 mm
Origin
Switzerland
Movement
HUB1143 Self-winding Chronograph Movement
Caliber
HUB1143
Power reserve
42 Hours
Complications
Chronograph, Date
Colour
Grey
Surface treatment
Satin-finished and Polished Titanium
Finish technology
Natural finish
Caseback
Sapphire
Nickel-free
No (steel contact)
Bracelet / strap
Black Lined Rubber Straps; Stainless Steel Deployant Buckle Clasp
Crystal
Sapphire
Display back
Yes
Dial
Matte Black Dial (521.NX.1171.RX); Satin-finished Gray Sunray (521.NX.7071.RX); Blue Sunray Satin-finished (521.NX.7170.RX); Satin-finished Green Sunray (521.NX.8970.RX); Satin-finished Sage Green Sunray (521.NX.891G.NR); Blue Sunray Satin-finished (521.NX.6670.LR.JPN18)
Dial colours
Black Grey Blue Green
Availability
Offered
Status
Current
Not published
Thickness, Lug-to-lug, Weight, Hardness, Construction, Matching bracelet, Lume
High confidence Verified Oct 2026 Source: Hublot (maker) product page / Hublot (maker) product page, 521.NX.7071.RX / Hublot (maker) product page, 521.NX.7170.RX / Hublot (maker) product page, 521.NX.8970.RX / Hublot (maker) product page, 521.NX.891G.NR / Hublot (maker) product page, 521.NX.6670.LR.JPN18 Also sold as521.NX.7071.RX521.NX.7170.RX521.NX.8970.RX521.NX.891G.NR521.NX.6670.LR.JPN18
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Frequently asked questions

Is the Hublot Classic Fusion Chronograph Titanium 45mm nickel-free?

No. At least one part that touches the skin is steel, usually the caseback or the clasp, and steel carries nickel, so the guide does not list it as nickel-free.

What grade of titanium is the Hublot Classic Fusion Chronograph Titanium 45mm?

Grade 5, as stated by the maker. The caseback is sapphire.

What size is the Hublot Classic Fusion Chronograph Titanium 45mm?

The case is 45 mm across. It is water resistant to 50 m.

How much does the Hublot Classic Fusion Chronograph Titanium 45mm cost, and is it available?

It is in production, at a list price of $12,300.

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