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Titan Zero Hour Professional Diver 500m Titanium

10071QM01

Titan, part of India's Tata Group, makes everything from everyday quartz to the youth line Fastrack, and Zero Hour is its newer sub-brand for sports and performance pieces. The Professional Diver 500M sits at the top of it as Titan's first 500 m automatic diver, certified to ISO 6425, with a helium valve at 9 o'clock and a 120-click unidirectional bezel with a sapphire insert, held by an Aqua Lock mechanism against being knocked. The case is black-coated Grade 2 titanium, 44.2 mm across and 15.5 mm thick, and Monochrome found it lighter and less top-heavy on the wrist than those numbers suggest. The dial is kept plain, with no date and generous hands filled with Super-LumiNova X1. Inside is Titan's in-house 7AC0 automatic, with 40 hours of reserve. It comes with a titanium bracelet and a black FKM strap, and is limited to 500 pieces at INR 77,995.

Written 28 September 2026 from Monochrome.

All Titan watchesDiver watchesUnder $1,000On a titanium bracelet
Price
$840
Material
Titanium
Grade / type
Grade 2
Water resistance
500 m
Reference
10071QM01
Type
Diver
Case diameter
44.2 mm
Thickness
15.5 mm
Origin
India
Movement
Automatic
Caliber
Titan calibre 7AC0
Power reserve
40 h
Complications
Time only
Colour
Black
Surface treatment
Black coating
Finish technology
Natural finish
Caseback
Titanium
Nickel-free
Unconfirmed (clasp or buckle material not confirmed)
Bracelet / strap
Titanium bracelet, plus a black FKM strap, both quick-release
Matching bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Black
Dial colours
Black
Lume
Super-LumiNova X1
Availability
Offered
Status
Current (limited to 500)
Not published
Lug-to-lug, Weight, Hardness, Construction
High confidence Verified Aug 2026 Source: Titan (maker) / Monochrome Spec checksGrade Jul 2026Price Jul 2026
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Frequently asked questions

What grade of titanium is the Titan Zero Hour Professional Diver 500m Titanium?

Grade 2, as stated by the maker. The caseback is titanium too.

What size is the Titan Zero Hour Professional Diver 500m Titanium?

The case is 44.2 mm across and 15.5 mm thick. It is water resistant to 500 m.

How much does the Titan Zero Hour Professional Diver 500m Titanium cost, and is it available?

It is in production, at a list price of $840.

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