MMA Aquanaut Series RB2 “Hand Grenade” Chronograph Watch Model 5968A-001
Featuring a 42.2mm stainless steel case, this timepiece includes a chronograph seconds hand, a 1/4-second precision outer track scale, and a 60-minute cumulative chronograph function.
The stainless steel case is paired with a rubber strap, delivering a modern, sporty, and sun-filled aesthetic. The case retains the iconic rounded octagonal bezel design, inspired by classic sports watch architecture.
The bezel is enhanced with chamfered and polished finishing, creating a more refined and detailed appearance. The front surface is polished, while the sides are brushed for contrast, and the slightly curved lugs naturally follow the wrist for improved wearing comfort.
Thickness: 13mm — ultra-slim profile in its category.
Equipped with a hypoallergenic natural rubber strap, offering excellent comfort and durability. A refined recommendation for a men’s multifunction mechanical sports watch, presented with high-quality real-life product photography.




