The case of this model is made of bronze. As the watch is worn, oxidization causes the bronze to gradually discolor and develop a patina over time. The degree of oxidization varies depending on the frequency of wear and the environment it is worn in, so the aging process is unique to your individual circumstances. Due to the nature of the bronze material, there may be some oxidization upon delivery. Please be aware of this in advance. No returns will be accepted for this discoloration.

KUOE is a watch brand that was established in the historic Japanese city of Kyoto in 2020. The brand was created with the vision of appealing a classic design from Kyoto to the world. We want people from around the world to enjoy high-quality classic watches made in Japan.

What is the Swiss Super-Luminova?
Super-LumiNova is a brand name under which strontium aluminate-based non-radioactive and nontoxic photoluminescent or afterglow pigments for illuminating markings on watch dials, hands and bezels, etc. in the dark are marketed. This technology offers up to ten times higher brightness than previous zinc sulfide-based materials.Super-LumiNova is based on LumiNova pigments, invented in 1993 by Nemoto & Co., Ltd. of Japan as a safe replacement for radium-based luminous paints. Nemoto & Co. was founded in December 1941 as a luminous paint processing company and has supplied paint to the watch and clock industry for over 70 years. 

SPECIFICATIONS
Automatic with hand-wound and hacking
TMI Japanese Movement, Cal. NH38
Glass: Dome-shaped Sapphire Glass with AR coating and AF coating
Case: CuSn8 Bronze
Hands and Buckle: PVD coating
Case-back: SUS 316L
Screw-Down Crown
Water Resistant: 10 BAR
Power Reserve: ~41 hours
Super-LumiNova(R) Hands and Dial - Glows in the dark after being exposed to strong light.
Accuracy: -20 to +40 seconds per day (23º± 2ºC)