Master of G: G Shock G 9100 Gulfman

Now it's turn for G Shock which specifically made for Coast or Sea Side activity. This Master of G comes comes with a  powerful features and functions into a tough rest-resistant configuration. All external metal parts, including screws, back cover, buckle, and even button shafts are made of titanium alloy for total protection, even in seawater environments.
The band is secured to the case by milled titanium alloy screws, while the form of the forged titanium alloy back provides outstanding impact resistance.

Design

G Shock G9100 Front View

This G Shock is rather small if we compare it with other G Shock from Master of G family, like Mudman or Riseman. This make the watch look handy and can be used by most of the people whose wrist is small. The small design does not make this particular G Shock becomes weak. It still carries the toughness that G Shock always offer. Like I told earlier in the opening, it is still as tough as other g Shock. Here are some other color variations.

G9100 Color Variation.

Feature

G9100 Front Detail View

The most important feature in this particular series is the Rust resist ability which is acquired by the metal structure which is being changed into Titanium, a particle which withstand rust from sea water. That is why it is being called Gulfman, a watch to be used in the Gulf and sea side activity. Another feature which can't be found in an ordinary G Shock is the Moon Phase and Sea Tide. This feature can be used to see the Moon data and how high the tide and any given moment.  Other feature which is bolted to this watch is same as other standard g Shock, like Auto EL, Alarm, World Time, etc. The only major draw back is only the missing of Tough Solar feature.

Toughness

G9100 All Around View

As member of Master of G family, of course it is tough. As I said earlier, although it is relatively small, but the structure can withstand any shock and water up to 20 Bar. the special toughness is on the ability to withstand rust. You can freely use this watch to swim in the beach or just play around salty water without any fear of this watch being rusty or broken. 

Alternative

GR9100GY as an alternative

This watch is indeed made specially for sea side use, you can use it to swim, but not recommended for diving. For diving purpose, you better off with Frogman, a master of swimming watch. if you want this particular model with the addition of Tough Solar ability, you can choose G Shock GR 9110 GY.