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From the GULFMASTER Series of watch designed and engineered to stand up to the rigors of maritime wear comes new collection of Twin Sensor models.
A digital compass takes continuous readings for 60 seconds to help find your bearings at sea, and a thermometer feature helps to keep you informed about the environment around you. A Tide Graphfeature lets you check tide conditions whenever you want, while a Moon age indicator shows a graphic representation of Moon data. Both of these functions also support activities on the sea.
A hand shift feature temporarily moves hands out of the way with the press of a button for easy reading of digital display contents.
The soft urethane band creates a secure fit around the entire case to form smooth-flowing lines. This also serves to relieve band tension and provide a comfortable fit to the wrist. The result is useful and highly practical functions packed into a form that maintains its comfort, even after long hours of wear.
From functionality to design, everything about these new GULFMASTER models supports the men of the sea and their activities in harsh environments.

? Twin Sensor for direction (60 seconds continuous) and temperature readings
? Bearing memory
? Tide Graph
? Mood Data
? Hand shift feature
? Super Illuminator, high-brightness auto LED light

The world-popular multi-dimensional Big Case Series that combines and layers various parts now adds new great looking color variations.
A big rotary switch at 3 o?clock adds to the overall design and also enables intuitive operation of various functions. An LED illumination system allows easy viewing even in the dark.

These G-SHOCK G-SQUAD GBD-H1000 Series models pack heart rate measurement and GPS capabilities into a choice of black or white designs made of semitransparent resin. The result is powerfully vibrant timepieces that look great no matter where they are worn.
Useful workout functions include an optical sensor for heart rate measurement, along with bearing, altitude/barometric pressure, and temperature sensors, and an accelerometer for step counting. These five sensors help to keep you in close touch with your current activity in real-time. The ability to receive GPS signals lets you access location information when you need it. When used in combination with the stopwatch, you can keep track of running information like distance, speed, pace, and more. The watch uses your heart rate and speed data to calculate a VO2max value, which is an indicator of your cardio-pulmonary capacity. This measurement is useful when trying to increase stamina for running and other activities. A phone app is available to help you configure watch settings and manage your training data.
You can monitor your current fitness level and training progress, and even automatically create a training plan based on targets specified by you. VO2max calculation and other data analysis capabilities use a library by FIRSTBEAT, a renowned sports science company.
Algorithms of improved accuracy support a higher level of training. The surface form of the back covers of these models reduces interference with the back of the hand, while a soft urethane band provides a better fit to the wrist. Bi-color molded buttons are designed for ease of use, while a high-definition MIP LCD makes display information more legible. Both USB and solar charging are supported, and solar charging can be used to power daily operations (except for pulse monitoring and GPS). Both of these models provide renowned G-SHOCK toughness along with new outdoor functions.

FIRSTBEAT
The watch uses an algorithm from FIRSTBEAT Technologies, a company with a reputation for advanced fitness data analysis. Highly accurate data analysis helps you get the most out of your training sessions.

Items measured using the FIRSTBEAT algorithm

• VO2max (fitness level)
• Training status
• Training load
• Recovery time
• Training effect
• Training plan
• Calories burned during training