Casio G-Shock & Baby-G Couple 25th Anniversary G Presents Lover Collection's Limited Models LOV21B-7D

Celebrate your timeless love with limited edition matching G-SHOCK and BABY-G watches inspired by the mathematical formula for love. The G Presents Lover's Collection marks its 25th anniversary with an extra-special pair of holiday timepieces.
What better symbol of romance than a one-of-a-kind design featuring the equation, x²-|x|y+y²=25, which, when plotted out, creates a heart-shaped graph symbolizing everlasting love? This unique take on the ever-popular square-faced DW-5600 and BGD-560 feature watchbands in a matte white graph paper design filled with math formulas. These equations hide a romantic secret that just you and your special someone share — align the bands to bring the two halves together to complete a single heart.
A small heart accents the face to mark the light button. Press the button to reveal a backlit silhouette of a heart. The case back is engraved with the year 2021, as well as with an angel and devil, because we know how opposites attract.
Packaged in a special two-watch box in white, these timepieces make an unforgettable gift.
* Available only in two matched watch sets. This set consists of the G-SHOCK and BABY-G.

G-Shock : 
Case / bezel material: Resin
Resin Band
Shock Resistant
Mineral Glass
200-meter water resistance
Electro-luminescent backlight
Afterglow
Flash alert
Flashes with buzzer that sounds for alarms, hourly time signals
1/100-second stopwatch
Measuring capacity: 00'00"00~59'59"99 (for the first 60 minutes)
1:00'00~23:59'59 (after 60 minutes)
Measuring unit: 1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
Measuring modes: Elapsed time, split time, 1st-2nd place times
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
Other: Auto-repeat
Multi-function alarm
Hourly time signal
Full auto-calendar (to year 2099)
12/24-hour format
Regular timekeeping: Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month
Approx. battery life: 2 years on CR2016
Size of case : 48.9 × 42.8 × 13.4mm
Total weight : 53g

Baby-G : 
Case / bezel material: Resin
Resin Band
Shock Resistant
Mineral Glass
200-meter water resistance
Electro-luminescent backlight
Selectable illumination duration (1.5 seconds or 3 seconds), afterglow
World time
29 time zones (48 cities), daylight saving on/off
1/100-second stopwatch
Measuring capacity: 59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place times
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
5 daily alarms (with 1 snooze alarm)
Hourly time signal
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Regular timekeeping: Hour, minute, second, am/pm, date, day
Accuracy: ±30 seconds per month
Approx. battery life: 3 years on CR1616
Size of case : 44.7 × 40 × 12.5mm
Total weight : 44g