Seiko Epson Corporation

Kazunori Hoshino

Koki Hayashi

Hiroshi Watanabe

Kenichiro Matsumoto

Ken Wakita

Takeshi Sakamoto

Yuji Kiyosawa

Takahiro Seki

A watch component having an oxide film formed by oxidizing a base material containing iron as a main component, an average film thickness of the oxide film is from 70 nm to 145 nm, and a variation in film thickness of the oxide film is equal to or less than 35%.

Watch component, and watch

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.

Timepiece

A watch is a watch including a watch case, a cover glass attached to the watch case, and a decorative body attached to the watch case, wherein the watch case includes a holding wall portion provided along an outer periphery of the cover glass, a first column portion provided outside the holding wall portion, a second column portion provided outside the holding wall portion, and provided at a distance from the first column portion, and an inclined portion including an inner end portion formed from between the first and second column portions to the holding wall portion, and is connected with the holding wall portion, and an outer end portion is connected with an outer surface of the watch case and provided at a position close to a rear surface of the watch case, and the decorative body is held by the holding wall portion, the first, and second column portions.

Watch

Watch case

Growing community of inventors

Matsumoto, Japan

Kazunori Hoshino