The tumbling satellite complication of the NASA Artemis Tumbler Automatic tells the time in a mesmerizing way, utilizing our proprietary tumbling hour automatic movement. To read the time, simply look at the time-telling section at the bottom of the dial where the minute track lines are located. Follow the current hour as it overlaps the 0 to 60 minute track lines and points to the current minute. Every hour a new hand will glide along the minute track. Easily change the look of the minute track by rotating the bezel, allowing you to choose whether to read the time in 5, 10, or 15 minute increments; lock your choice into place with the screw down crown. The Super-LumiNova dial, hands, and bezel all glow in a variety of ways. A scratch-resistant domed sapphire crystal covers the dial, and the stainless steel case gives you a glimpse of the mechanics through the back of the watch. Being completely mechanical, it doesn’t require batteries. The custom luminous rotor depicts the lunar surface surrounded by stars and the pale blue dot of the Earth in the distance. The watch will come with both a brushed stainless steel bracelet and a 2-tone silicone strap, which are easily interchangeable using our quick release system. SPECIFICATIONS Movement: Xeric Caliber X4.1 Proprietary Automatic based on Miyota 9039, 24 Jewels, 28,800 BPH, Shock Resistant, Up to 40 Hour Power Reserve, Hand-windableCase: 42mm Wide 316L Stainless Steel (without crown guards and Screw-down Crown). 11.75mm Thick (without crystal). 49.5mm Lug to Lug Bezel: Tactile 120-Clicks Rotating Bezel with 5, 10, 15 Minute Readout Options with Super-LumiNova Crystal: Anti-reflective Coated, Ultra-scratch Resistant Sapphire Glass. 2.25mm Thick. Caseback: Solid Stainless Steel with Sapphire Glass Exhibition Window. Engraved with Limited Edition Number between 1 and 385. Hands: Anodized Aluminum 3D Hour Pods with Engraved and Filled Super-LumiNova Triangles for Long-lasting Lume. Strap: 20mm Two-tone Moulded Silicone Strap and Solid Stainless Steel Bracelet. Both have the Tool-Free Quick Release Springbar System Water Resistance: 100 Meters / 10 ATM