WATERPROOF WATCH CASE Russian patent published in 2020 - IPC G04B37/00 

FIELD: watches and other time measuring instruments.

SUBSTANCE: case (1) of a waterproof diving watch comprises at least one rear cover (4) mounted on the lower side of case ring (2), and glass (3) installed by means of spacer (5, 5') on the upper side of the case ring. Rear cover comprises annular support surface (24) for contacting inner annular surface (32) of the case ring, the shape of which corresponds to the shape of the support surface, when the rear cover is fitted on the case ring. Ring support surface and inner annular surface are inclined inside watch case at preset angle less than 90° relative to central axis, perpendicular to watch case plane, for distribution of stresses arising due to water pressure during immersion, between rear cover and case ring. Annular support surface and inner annular surface have conical shape.

EFFECT: waterproof watch case for diving is described.

13 cl, 4 dwg