A watch module comprising a regulator device for a watch movement, the regulator device comprising: - an inertial element of a resonator pivoted about a first axis, the inertial element being inscribed within a first cylinder having a diameter D centered on the first axis and the resonator having a first inertia I; - an escapement mobile comprising an escape wheel and pivoted about a second axis, the escapement mobile being inscribed within a second cylinder having a diameter D3 centered on the second axis and having a second inertia I3; - a blocking member comprising: o a first blocking lever mobile comprising a first blocking lever element, the first blocking lever mobile being pivoted about a third axis (A2a), inscribed within a third cylinder having a diameter D2a centered on the third axis and having a third inertia I2a; and ∘ a second blocking lever mobile comprising a second blocking lever element, the second blocking lever mobile being pivoted about a fourth axis (A2b), inscribed within a fourth cylinder having a diameter D2b centered on the fourth axis and having a fourth inertia I2b, the first and second blocking lever mobiles being arranged in such a way as to cooperate, especially by gearing, with each other, the regulator device being such that: D 2 a × I 2 a < 4.10 − 4 × D × I, or D 2 a × I 2 a ≤ 3.10 − 4 × D × I, or D 2 a × I 2 a ≤ 2.10 − 4 × D × I; and/or D 2 b × I 2 b < 10 − 4 × D × I, or D 2 b × I 2 b ≤ 9.10 − 5 × D × I, or D 2 b × I 2 b ≤ 8.10 − 5 × D × I; and/or D 3 × I 3 < 7.10 − 5 × D × I, or D 3 × I 3 ≤ 6.10 − 5 × D × I, or D 3 × I 3 ≤ 5.10 − 5 × D × I, wherein the first and second blocking lever mobiles and the escapement mobile are pivoted between a first bridge and a second bridge. - an inertial element of a resonator pivoted about a first axis, the inertial element being inscribed within a first cylinder having a diameter D centered on the first axis and the resonator having a first inertia I; - an escapement mobile comprising an escape wheel and pivoted about a second axis, the escapement mobile being inscribed within a second cylinder having a diameter D3 centered on the second axis and having a second inertia I3; - a blocking member comprising: o a first blocking lever mobile comprising a first blocking lever element, the first blocking lever mobile being pivoted about a third axis (A2a), inscribed within a third cylinder having a diameter D2a centered on the third axis and having a third inertia I2a; and ∘ a second blocking lever mobile comprising a second blocking lever element, the second blocking lever mobile being pivoted about a fourth axis (A2b), inscribed within a fourth cylinder having a diameter D2b centered on the fourth axis and having a fourth inertia I2b, o a first blocking lever mobile comprising a first blocking lever element, the first blocking lever mobile being pivoted about a third axis (A2a), inscribed within a third cylinder having a diameter D2a centered on the third axis and having a third inertia I2a; and ∘ a second blocking lever mobile comprising a second blocking lever element, the second blocking lever mobile being pivoted about a fourth axis (A2b), inscribed within a fourth cylinder having a diameter D2b centered on the fourth axis and having a fourth inertia I2b, the first and second blocking lever mobiles being arranged in such a way as to cooperate, especially by gearing, with each other, the regulator device being such that: D 2 a × I 2 a < 4.10 − 4 × D × I, or D 2 a × I 2 a ≤ 3.10 − 4 × D × I, or D 2 a × I 2 a ≤ 2.10 − 4 × D × I; and/or D 2 b × I 2 b < 10 − 4 × D × I, or D 2 b × I 2 b ≤ 9.10 − 5 × D × I, or D 2 b × I 2 b ≤ 8.10 − 5 × D × I; and/or D 3 × I 3 < 7.10 − 5 × D × I, or D 3 × I 3 ≤ 6.10 − 5 × D × I, or D 3 × I 3 ≤ 5.10 − 5 × D × I, wherein the first and second blocking lever mobiles and the escapement mobile are pivoted between a first bridge and a second bridge.