Stevens took a wicket and conceded just 14 runs in his spell with the ball, before firing a century as Jersey chased down the 230 set by the hosts in hot conditions.
Dan Birrell finished with top figures of 3/39 with Stevens assisted on his way to 103 by a healthy number of Jersey batsmen.
Coach Neil MacRae was pleased with the confidence-boosting century provided by Stevens, who was key with the bat in recent T20 World Cup qualifiers.
He wants to see his other skilful top-order batsmen now post big scores in two more warm-up games this week.
‘It was a great way to begin our time in Oman and it was a good test with some tough cricket, which is what we wanted,’ MacRae explained.
‘They set us 230 and the century from Ben Stevens was great as we chased down the total.
‘We have a strong batting line-up and we have said that is what we want to see, our batsmen getting runs on the board and getting big scores.
‘We dealt well with the conditions too with it being our first 50-over game for quite a while.
‘This week now will just be spent fine-tuning things in the other two warm-up games ahead of the opener.’
Jersey begin their Challenge League campaign – the first of three round-robin tournaments over the next three years – on Monday against Uganda.
