公开(公告)号：US20220083007A1

公开(公告)日：2022-03-17

申请号：US17472834

申请日：2021-09-13

Applicant: Seiko Epson Corporation

Inventor： Kenichiro MATSUMOTO

IPC: G04B19/28 ,  G04B39/00 ,  G04B37/08

Abstract: The present disclosure includes a case body configured to accommodate a movement, and a rotating bezel attached to the case body. The rotating bezel includes a bezel body having an annular shape, and a display plate detachably attached to the bezel body. An engagement protrusion protruding toward the bezel body and being continuous in a circumferential direction is provided at the display plate. A plastic gasket having an annular shape is disposed between the bezel body and the engagement protrusion. A first recessed portion is provided in an outer circumference of the display plate. A second recessed portion is provided in the engagement protrusion of the display plate so as to correspond to a position of the first recessed portion.

公开(公告)号：US20220100149A1

公开(公告)日：2022-03-31

申请号：US17483872

申请日：2021-09-24

Applicant: Seiko Epson Corporation

Inventor： Koki HAYASHI ,  Kenichiro MATSUMOTO ,  Kazunori HOSHINO ,  Hiroshi WATANABE

IPC: G04B39/02 ,  G04B45/00 ,  G04B39/00

Abstract: A timepiece including: a dial; a windshield glass having a plurality of curved surfaces that differ from each other in curvature; and a hand disposed between the dial and the windshield glass, wherein the windshield glass includes: a first curved surface having a first curvature and including a center of the windshield glass; a second curved surface disposed adjacent to the first curved surface and having a second curvature larger than the first curvature; and a third curved surface disposed adjacent to the second curved surface and having a third curvature larger than the second curvature, a thickness of the first curved surface and a thickness of the second curved surface are equal, and in plan view, a distal end of the hand is disposed on a center C side of the windshield glass with respect to a boundary between the second curved surface and the third curved surface.

公开(公告)号：US20230240415A1

公开(公告)日：2023-08-03

申请号：US18163462

申请日：2023-02-02

Applicant: SEIKO EPSON CORPORATION

Inventor： Satoshi YAMAUCHI ,  Kenichiro MATSUMOTO ,  Toru TAKIUCHI ,  Yuki YAMASHITA

IPC: A44C5/24

CPC classification number: A44C5/246

Abstract: A band includes a clasp, wherein the clasp includes a cover member and an adjustment portion, the adjustment portion includes a pair of rail portions that are arranged along inner sides of two side walls of the cover member in a longitudinal direction of the cover member and have a plurality of grooves for length adjustment, a pressing portion that is disposed at an inner bottom surface of the cover member and includes an elastic member, and an engagement pin that is inserted through the one end of a adjustment piece and is configured to be engaged with the grooves of the rail portions, and the pressing portion is configured to press the engagement pin against the rail portions in a state where the engagement pin is engaged with the pair of grooves.

公开(公告)号：US20250130530A1

公开(公告)日：2025-04-24

申请号：US18919528

申请日：2024-10-18

Applicant: SEIKO EPSON CORPORATION

Inventor： Koki HAYASHI ,  Kenichiro MATSUMOTO ,  Toru TAKIUCHI ,  Eiichi HIRAYA ,  Toru KAWASAKI

IPC: G04B19/28

Abstract: A timepiece includes hands that indicate time; a movement that drives the hands; a case band that stores the movement; a rotating bezel provided to be rotatable with respect to the case band; and a rotating bezel pressing ring fixed to the case band. The rotating bezel pressing ring includes a protruding portion that protrudes outward in a radial direction, and that holds the rotating bezel between the protruding portion and the case band. The protruding portion is provided with an annular restriction portion in which a plurality of restricted portions are continuous with each other in a circumferential direction. The rotating bezel is provided with a restricting member that engages with the restricted portion. When the rotating bezel is rotated, the restricting member sequentially engages with the restricted portions, so that a click feeling is generated in the rotational operation of the rotating bezel, and a position of the rotating bezel is restricted.

公开(公告)号：US20250009083A1

公开(公告)日：2025-01-09

申请号：US18887169

申请日：2024-09-17

Applicant: SEIKO EPSON CORPORATION

Inventor： Satoshi YAMAUCHI ,  Kenichiro MATSUMOTO ,  Toru TAKIUCHI ,  Yuki YAMASHITA

IPC: A44C5/24

Abstract: A band includes a clasp, wherein the clasp includes a cover member and an adjustment portion, the adjustment portion includes a pair of rail portions that are arranged along inner sides of two side walls of the cover member in a longitudinal direction of the cover member and have a plurality of grooves for length adjustment, a pressing portion that is disposed at an inner bottom surface of the cover member and includes an elastic member, and an engagement pin that is inserted through the one end of a adjustment piece and is configured to be engaged with the grooves of the rail portions, and the pressing portion is configured to press the engagement pin against the rail portions in a state where the engagement pin is engaged with the pair of grooves.