About Hattori workshop see https://asiamedals.info/threads/history-labels-i-marks-of-hattori-watch-shop-tokyo.19361
1st variation "mark KH"
Mark.
KH for Kintaro Hattori and small martlet mark.
Case.
陸軍大學校卒業徽章 - Army War College Graduation Badge
The company was founded in 1881 when Hattori Kintaro opened a watch and jewelry store called Hattori Tokeiten/服部時計店 in Tokyo's Ginza district. 11 years later, in 1892, he began to produce a watch called Seikosha (精工舎 / Seikōsha), which can be translated as "the house of exclusive craftsmanship"...
badge made by hattori workshop
hattori watch shop
hattori workshop
hattori&co
history
japanese badge with martlet mark
japanese badge with swallow mark
japanese bird mark
japanese martlet mark
japanese martlet silver mark
labels и marks of hattori watch shop
manufacturers of japanese badges
tokyo
服部時計店
燕マーク
燕マークバッジ
燕マークメダル
燕マーク章