Ball Roadmaster Marine GMT

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 $1,300 median for the category. The caseback is open, so the movement is visible.

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Price

$3,999

Titanium

Titanium (grade undisclosed)

Weight

160 g (with bracelet)

Water resistance

200 m

Nickel-free

No

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

Case shape

Round

Case colour

Natural / grey

Finish technology

Natural finish

Surface treatment

Satin-brushed / polished

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, Caseback, Titanium bracelet Help verify

High confidence Verified Jul 2026 Source: aBlogtoWatch Maker / listing ↗

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