The IBF, who have a secondary weigh in unlike every other governing body, allow a fighter to put on 10lbs between weigh ins done the day before a fight and on the morning of a fight. So for a fight at Super Bantamweight the limit goes from 122lbs on the day before weigh in to 132lbs the day after.
On this same day weigh in Hasegawa was 59.2KG (130.5lbs) whilst Martinez was 59.1KG (130.3lbs) so both were comfortably inside the 132lb limit.
As for the WBC Bantamweight title fight between Shinsuke Yamanaka (20-0-2, 15) and Stephane Jamoye (25-4, 15) there was no need for a secondary weigh in, though we'd be shocked if Yamanaka didn't pile on more weight over night than Jamoye.
(Image, from the first weigh in we believe, is courtesy of Hozumi Hasegawa's blog)