Maratac Alto Mare 500M GMT Titanium

The Maratac Alto Mare 500M GMT Titanium is a current-production diver watch with a Grade 5 titanium case. At 159 g it sits among the heavier diver watches in the guide, and is priced well under the $1,300 median for the category. It ships on a matching titanium bracelet rather than a strap.

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Price

$749

Titanium

Grade 5

Weight

159 g

Water resistance

500 m

Type

Diver

Case diameter

42.0 mm

Thickness

15.75 mm

Lug-to-lug

50 mm

Origin

United States

Movement

Automatic GMT (true GMT)

Caliber

Miyota 9075

Power reserve

42h

Complications

GMT, Date

Case shape

Round

Case colour

Natural / grey

Finish technology

Natural finish

Surface treatment

None

Nickel-free

Not verified (contact-point materials not all confirmed)

Bracelet / strap

Grade 5 titanium bracelet (plus mil band)

Titanium bracelet

Standard

Crystal

Domed sapphire

Display back

No

Dial

Black

Dial colours

Black

Lume

Swiss Super-LumiNova X1 (C3)

Availability

Offered

Status

Current (between batches)

Not published

Reference, Caseback Help verify

Medium confidence Verified Jun 2026 Source: CountyComm (Maratac) Maker / listing ↗

Copy citationFacts are free to cite with a link.

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