The Titanium Field Guide

Ball Roadmaster Marine GMT

DG3030B

The Ball Roadmaster Marine GMT is a current-production diver watch with a titanium (grade undisclosed) case, finished with satin-brushed / polished. At 160 g it sits among the heavier diver watches in the guide, and is priced well above the $1,299 median for the category. The caseback is open, so the movement is visible.

All Ball watchesWatch diver watchesLightest, rankedDisplay backGMT
Price
$3,999
Material
Titanium
Grade / type
Titanium (grade undisclosed)
Weight
160 g (with bracelet)
Water resistance
200 m
Reference
DG3030B
Type
Diver
Case diameter
40.0 mm
Thickness
14 mm
Origin
Switzerland
Movement
Automatic (COSC)
Caliber
Ball RR1203-C
Complications
GMT, Day-date
Colour
Grey
Surface treatment
Satin-brushed / polished
Finish technology
Natural finish
Nickel-free
No (steel contact)
Bracelet / strap
Titanium
Crystal
Sapphire (+ caseback)
Display back
Yes
Dial
Black / blue (ceramic bezel)
Dial colours
Black Blue
Lume
Tritium micro gas tubes
Availability
Offered
Status
Current
Not published
Lug-to-lug, Power reserve, Hardness, Construction, Caseback, Matching bracelet
High confidence Verified Aug 2026 Source: aBlogtoWatch Maker ↗
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Alternatives to the Ball Roadmaster Marine GMT

Unimatic Modello Uno U1S-TGMTUnimaticModello Uno U1S-TGMT$2,77740.0 mm57 gDiversame category · same style · shared complications · similar priceTandorio TD267G 42mm Titanium FXD Pelagos GMTTandorioTD267G 42mm Titanium FXD Pelagos GMT$20942.0 mmDiversame category · same style · shared complications · similar sizeThorn T020 42mm NH34 GMT Titanium DiverThornT020 42mm NH34 GMT Titanium Diver$24942.0 mmDiversame category · same style · shared complications · similar sizeKRONOSTI Voyager Horizon GMTKRONOSTIVoyager Horizon GMT$25939.5 mm11.5 mm thickDiversame category · same style · shared complications · similar sizeSeestern S462 Titanium Professional GMT DiverSeesternS462 Titanium Professional GMT Diver$25940.0 mm12 mm thick100 gDiversame category · same style · shared complications · similar size
ThornTitanium Helium Valve NH34 GMT$25940.5 mmDiversame category · same style · shared complications · similar size

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Frequently asked questions

Is the Ball Roadmaster Marine GMT nickel-free?

No. At least one part that touches the skin is nickel-bearing steel (commonly the caseback or clasp), so the guide does not mark it nickel-free.

What is the case material of the Ball Roadmaster Marine GMT?

The Ball Roadmaster Marine GMT has a titanium (grade undisclosed) case. This is confirmed against the maker spec.

What size is the Ball Roadmaster Marine GMT?

It is 40.0 mm in diameter, 14 mm thick, and water resistant to 200 m.

How much does the Ball Roadmaster Marine GMT weigh?

About 160 g (w/ bracelet).

How much does the Ball Roadmaster Marine GMT cost, and is it available?

It is current-production and lists from $3,999.

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